Describe the sampling distribution of p. Assume the size of the population is 15,000. n=700, p=0.6 Question content area bottom Part 1 Choose the phrase that best describes the shape of the sampling distribution of p below. A. Approximately normal because n≤0.05N and np(1−p)<10. B. Approximately normal because n≤0.05N and np(1−p)≥10. C. Not normal because n≤0.05N and np(1−p)<10. D. Not normal because n≤0.05N and np(1−p)≥10. Part 2 Determine the mean of the sampling distribution of p. μp=enter your response here (Round to one decimal place as needed.) Part 3 Determine the standard deviation of the sampling distribution of p. σp=enter your response here (Round to three decimal places as needed.)

Answers

Answer 1

Part 1:

The correct answer is B. The sampling distribution of p is approximately normal because n is less than 5% of the population size (n ≤ 0.05N) and np(1-p) is greater than or equal to 10 (np(1-p) ≥ 10).

Part 2:

The mean of the sampling distribution of p is equal to the population proportion, which is 0.6. Therefore, μp = 0.6.

Part 3:

The standard deviation of the sampling distribution of p is given by the formula:

σp = sqrt((p(1-p))/n)

Substituting p = 0.6 and n = 700, we get:

σp = sqrt((0.6(1-0.6))/700)

σp ≈ 0.024

Therefore, the standard deviation of the sampling distribution of p is approximately 0.024.

Answer 2

Part 1:

The shape of the sampling distribution of p can be determined using the following criteria:
- np(1-p) ≥ 10
- n ≤ 0.05N

Here, n=700, N=15000, and p=0.6.

np(1-p) = 700 * 0.6 * (1-0.6) = 168.

Since np(1-p) ≥ 10, the first criterion is met.

n/N = 700/15000 = 0.0467, which is less than 0.05. So the second criterion is also met.

Therefore, the sampling distribution of p is approximately normal.

The correct answer is (B) Approximately normal because n≤0.05N and np(1−p)≥10.

Part 2:

The mean of the sampling distribution of p is given by the formula:

μp = p = 0.6

Therefore, the mean of the sampling distribution of p is 0.6.

The answer is μp = 0.6.

Part 3:

The standard deviation of the sampling distribution of p is given by the formula:

σp = sqrt [ p(1-p) / n ]

Substituting the values, we get:

σp = sqrt [ 0.6 * (1-0.6) / 700 ]

σp = 0.026

Therefore, the standard deviation of the sampling distribution of p is 0.026.

The answer is σp = 0.026.

Related Questions

Question
Which of the following key characteristics is NOT true of a linear function?
Responses

Domain is all real numbers.

Maximum number of vertices is one.

Rate of change is constant.

There is exactly 1 y -intercept.

Answers

A linear function does not have a maximum number of vertices.

Hi can i convert the binary number 1000000 to a hexadecimal number?

Answers

Answer: yes, the hex of the number 1,000,000 would be 40.

Please help me show work

Answers

1.) m<A = 51°

AB = 17.5

BC = 13.6

How to calculate the missing side and angles of the given triangle?

To calculate the missing part of the triangle, m <A ;

The sum of the interior triangle = 180°

That is , 180° = 90°+ 39° + m

make m the subject of formula;

m = 180 - 129

m <A = 51°

Using the formula from SOHCAHTOA;

Sin 39° = 11/AB

make AB the subject of formula;

AB = 11/0.629320391

= 17.5

Using the Pythagorean formula;

C² = a² + b²

C² = 17.5

a² = 11

b² = BC = ?

17.5² = 11² + b²

make b² the subject of formula;

b² = 17.5²-11²

b² = 306.25 - 121

b² = 185.25

b = √185.25

b = 13.60

Learn more about triangles here:

https://brainly.com/question/28470545

#SPJ1

TrianglePQR is shown.
A. What are the missing side lengths in TrianglePQR

B. Explain how you arrived at your answer.

Answers

The length of the two unknown sides of the triangle are: 12√2

How to find the missing lengths of the triangle?

There are different methods of finding the missing sides of triangles such as:

Pythagoras Theorem

Law of sines or sine rule

Law of cosines or cosine rule

Now, we are given an Isosceles triangle with a base length and two equal base angles.

Thus, the two unknown sides will have equal side lengths.

∠D = 90°

Thus, using sine rule:

12/sin 90 = QR/sin 45

QR = 12 * 1/√2

Rationalizing the denominator gives:

QR = 12√2

Since the two unknown sides of the triangle are equal, then we say that:

PQ = 12√2

Read more about Missing lengths of triangle at: https://brainly.com/question/30091321

#SPJ1

The data represents the heights of eruptions by a geyser. Use the heights to construct a stemplot. Identify the two values that are closest to the middle when the data are sorted in order from lowest to highest. Which plot represents a stemplot of the data? * Height of eruption (in.) 66 32 50 900 50 40 70 70 59 61 60 88 80 50 63 54 62 73 70 49

Answers

The values closest to these middle elements are 60 and 61 inches.

How do we use stemplot to find the middle data?

To construct a stemplot for the given data, we need to separate each observation into a stem and a leaf. The stem is the digit(s) on the left-hand side of the decimal point, while the leaf is the digit on the right-hand side. The stemplot for the given data is:

3 | 2

4 | 0 9 9

5 | 0 0 0 4 4 9

6 | 1 2 3

7 | 0 0 3 0

8 | 0 8

9 | 0

To find the two values that are closest to the middle, we need to sort the data in order from lowest to highest:

We have 19 observations, so the middle two observations are the 10th and 11th values, which are 60 inches and 61 inches, respectively. Therefore, the two values closest to the middle are 60 inches and 61 inches.

Answers

The exponential growth functions are,

[tex]y=\frac{9}{11}(4)^t[/tex]

[tex]V=0.8(9)^t[/tex]

[tex]P=0.9(8.3)^t[/tex]

[tex]P=\frac{7}{9}(\frac{5}{4})^t[/tex]

The exponential decay functions are,

[tex]A= (0.97)^t[/tex]

[tex]y= 3.7 (0.2)^t[/tex]

The function which is neither exponential growth nor exponential decay is,

g(x)=2.1(x).

What is exponential function?

A mathematical function called an exponential function is employed frequently in everyday life. It is mostly used to compute investments, model populations, determine exponential decline or exponential growth, and so forth.

If the base is larger than 1, it will be an exponential growth.

For example, [tex]3^2=9[/tex]

If the base is smaller than 1, it will be an exponential decay.

For example, [tex]0.5^2=0.25[/tex]

If the function does not have an exponent, that means there will be no exponential growth or decay.

Therefore the exponential growth functions are,

[tex]y=\frac{9}{11}(4)^t[/tex]

[tex]V=0.8(9)^t[/tex]

[tex]P=0.9(8.3)^t[/tex]

[tex]P=\frac{7}{9}(\frac{5}{4})^t[/tex]

The exponential decay functions are,

[tex]A= (0.97)^t[/tex]

[tex]y= 3.7 (0.2)^t[/tex]

The function which is neither exponential growth nor exponential decay is,

g(x)=2.1(x).

To learn more about exponential function refer the below link

https://brainly.com/question/2456547

#SPJ1

In a 300-m-tall building, the stairwells are no more than 20 stories high. A story is approximately 3 m high. What is the maximum pressure differential in a stairwell? What is the atmospheric pressure difference between the top of the building and street level? What is the difference in static water pressure between consecutive floors?

Answers

The maximum pressure differential in a stairwell is 58,860 Pa.

The atmospheric pressure difference between the top of the building and the street level is 2,943,000 Pa.

The difference in static water pressure between consecutive floors is 29,430 Pa.

We have,

Assuming a standard atmospheric pressure of 101.3 kPa.

Maximum pressure differential in a stairwell:

Since each stairwell is no more than 20 stories high and each story is approximately 3 m high, the maximum height difference between two floors in a stairwell is:

= 20 x 3

= 60 m

Using the formula for hydrostatic pressure, the maximum pressure differential in a stairwell is:

ΔP = ρgh

= (1000 kg/m³)(9.81 m/s²)(60 m)

= 58,860 Pa

The atmospheric pressure difference between the top of the building and street level:

The atmospheric pressure decreases with increasing altitude.

Using the formula for hydrostatic pressure, the pressure difference between the top of the building and the street level is:

ΔP = ρgh

= (1000 kg/m³)(9.81 m/s²)(300 m)

= 2,943,000 Pa

The difference in static water pressure between consecutive floors:

Assuming a standard density of water of 1000 kg/m³, the difference in static water pressure between consecutive floors is:

ΔP = ρgh = (1000 kg/m³)(9.81 m/s²)(3 m) = 29,430 Pa

Therefore,

The maximum pressure differential in a stairwell is 58,860 Pa.

The atmospheric pressure difference between the top of the building and the street level is 2,943,000 Pa.

The difference in static water pressure between consecutive floors is 29,430 Pa.

Learn more about pressure here:

https://brainly.com/question/30166820

#SPJ1

a. Find angle x
b. What kind of angle is angle x ?

Answers

Answer: if the first angle is 61° then the angle x is 119°

but if the first angle is 67 then the angle x is 113°

Step-by-step explanation:

Line is 180° that means our formula will look like that 67 or 61 + x = 180 in that case we have to calculate x ⇒ 180 - 61 or 67 = x

Miller Toy Company manufactures a plastic swimming pool at its Westwood Plant. The plant has been experiencing problems as shown by its June contribution format income statement below:

Flexible
Budge
Actual
Sales (7,000 pools)
$265,000 $265,000
Variable expenses:
Variable cost of goods sold*
79,240
97,525
Variable selling expenses
19,000
19,000
Total variable expenses
98,240
116,525
Contribution margin
166,760
148,475
Fixed expenses:
Manufacturing overhead
Selling and administrative
Total fixed expenses
Net operating income (loss)
67,000
67,000
85,000
85,000
152,000
152,000
$ 14,760 $ (3,525)

Janet Dunn, who has just been appointed general manager of the Westwood Plant, has been given instructions to "get things under control. Upon reviewing the plant's income statement, Ms. Dunn has concluded that the major problem lies in the variable cost of goods sold. She has been provided with the following standard cost per swimming pool:

Direct materials
Direct labor
Variable manufacturing overhead
Total standard cost per unit

Standard
Quantity or
Hours
3.5 pounds
0.4 hours
0.3 hours

Standard Price or Rate
§ 2.10 per pound
$ 7.60 per hour
$ 3.10 per hour

Standard
Cost
$ 7.35
3.04
0.93
$ 11.32

During June, the plant produced 7,000 pools and incurred the following costs:
a. Purchased 29,500 pounds of materials at a cost of $2.55 per pound.
b. Used 24,300 pounds of materials in production. (Finished goods and work in process inventories are insignificant and can be ignored.)
c. Worked 3,400 direct labor-hours at a cost of $7.30 per hour.
d. Incurred variable manufacturing overhead cost totaling $8,400 for the month. A total of 2,400 machine-hours was recorded.
It is the company's policy to close all variances to cost of goods sold on a monthly basis

Required:
1. Compute the following variances for June:
a. Materials price and quantity variances
b. Labor rate and efficiency variances.
c. Variable overhead rate and efficiency variances.
2. Summarize the variances that you computed in (1) above by showing the net overall favorable or unfavorable variance for the month.

Answers

Materials price and quantity variances:
a. Materials price variance = (Standard price - Actual price) x Actual quantity
= ($2.10 - $2.55) x 24,300 pounds
= -$10,935 (Unfavorable)
b. Materials quantity variance = (Standard quantity - Actual quantity) x Standard price
= (3.5 pounds - 24,300 pounds) x $2.10 per pound
= -$48,465 (Unfavorable)

Labor rate and efficiency variances:
a. Labor rate variance = (Standard rate - Actual rate) x Actual hours
= ($7.60 - $7.30) x 3,400 hours
= $1,020 (Favorable)
b. Labor efficiency variance = (Standard hours - Actual hours) x Standard rate
= (0.3 hours - 3,400 hours) x $7.60 per hour
= -$23,600 (Unfavorable)

Variable overhead rate and efficiency variances:
a. Variable overhead rate variance = (Standard rate - Actual rate) x Actual hours
= ($3.10 - $8,400/2,400 hours) x 2,400 hours
= -$2,800 (Unfavorable)
b. Variable overhead efficiency variance = (Standard hours - Actual hours) x Standard rate
= (0.3 hours - 2,400 hours) x $3.10 per hour
= -$7,194 (Unfavorable)

Net overall favorable or unfavorable variance for the month:
To calculate the net overall variance, we sum up all the variances:
Overall Variance = Materials price variance + Materials quantity variance + Labor rate variance + Labor efficiency variance + Variable overhead rate variance + Variable overhead efficiency variance

= -$10,935 + (-$48,465) + $1,020 + (-$23,600) + (-$2,800) + (-$7,194)
= -$94,014 (Unfavorable)

Calculate the monthly finance charge for the credit card transaction. Assume that it takes 10 days for a payment to be received and recorded, and that the month is 30 days long. (Round your answers to the nearest cent.)
$500 balance, 16%, $50 payment
(a) previous balance method $
(b) adjusted balance method $
(c) average daily balance method

Answers

Interest charge for the month = 51.69 rounded to the nearest penny.

Here, we have,

The particular month in question is 30 days long.

Your balance at the start of the month is 3,000.

Annual interest rate = 21%.

Payment = 150.00.

When the payment is made in the month, it reflects on the tax amount you pay on both the average day balance.

YOU SEND THE PAYMENT IN ON THE FIRST DAY OF THE MONTH.

YOUR ACCOUNT IS CREDITED ON THE 11TH DAY OF THE MONTH.

Average daily balance is 3000 from day 1 until day 10 (10 days)

Average daily balance is 2850 from day 11 until day 30 (20 days)

Average daily balance for the month = 10 * 3000 + 20 * 2850

= 87000 / 30

= 2900

Interest charge for the month = 0.21 * 2900 * 30 / 365

Interest charge for the month = 50.05 rounded to the nearest penny

YOU SEND THE PAYMENT IN ON THE TWENTIETH DAY OF THE MONTH.

YOUR ACCOUNT IS CREDITED ON THE 30TH DAY OF THE MONTH.

Average daily balance is 3000 from day 1 until day 29 (29 days)

Average daily balance is 2850 from day 30 until day 30 (1 day)

Average daily balance for the month = 3000 * 29 + 1 * 2850

= 89850 / 30

= 2995

Interest charge for the month = 0.21 * 2995 * 30 / 365

Interest charge for the month = 51.69 rounded to the nearest penny

Learn more about interest here:

brainly.com/question/13324776

#SPJ1

Complete Question:

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. Round your answer to the nearest cent.

3,000 balance, 21% rate, 150 payment, average daily method

Plot -2 1/6 and 11/6 on the number line below.

Answers

The number line where we plotting -2 1/6 and 11/6 is attached

Plotting -2 1/6 and 11/6 on a number line

From the question, we have the following parameters that can be used in our computation:

-2 1/6 and 11/6

To start with, we convert both numbers to the same form

i.e. decimal or fraction

When converted to fractions, we have

-13/6 and 11/6

This means that we can plot -13/6 at -13 and 11/6 at point 11 where the difference in each interval is 1/6

Using the above as a guide, we have the following:

The number line is attached

Answers

Thus, the dimensions of the rectangle are - length 22 inches and width 13 inches.

Explain about the rectangle:

An enclosed 2-D shape called a rectangle has four sides, four corners, and four right angles (90°). The opposite sides of a rectangular are equal and parallel. A rectangle has two dimensions—length and width—because it is a two-dimensional form. The rectangle's longer side is its length, while its shorter side is its breadth.

Let the length of rectangle be 'l'

Let the width be 'w'.

Then,

Perimeter = 2(l + w)

70 = 2(l + w)

35 = l + w

l = 35 - w ...eq 1

Now,

Area = length * width

286 = l*w ...eq 2

Put eq 1 in eq 2

286 = (35 - w)*w

286 = 35w - w²

w² - 35w + 286 = 0

Solving the quadratic equation:

w² - 22w - 13w + 22*13 = 0

w(w - 22) - 13(w - 22)= 0

(w - 22)(w - 13) = 0

w = 22 and w = 13

As, length is greater than width-

width w = 13 inch

Length l = 35 - 13 = 22 inches.

know more about the rectangle:

https://brainly.com/question/25292087

#SPJ1

For each triangle, calculate the ratio of the opposite side to the adiacent side to two decimal places. How do they compare?

Answers

Answer:

[tex]Triangle\: 1: } \dfrac{opposite}{adjacent} = \dfrac{16}{39.6} = \boxed{0.40404\cdots}[/tex]

[tex]Triangle\: 2: } \dfrac{opposite}{adjacent} = \dfrac{48}{118.8} = \boxed{0.40404\cdots}[/tex]

Choice C: The ratio is the same for both triangles

Step-by-step explanation:

[tex]Triangle\: 1: } \dfrac{opposite}{adjacent} = \dfrac{16}{39.6} = \boxed{0.40404\cdots}[/tex]

[tex]Triangle\: 2: } \dfrac{opposite}{adjacent} = \dfrac{48}{118.8} = \boxed{0.40404\cdots}[/tex]

So both ratios are the same. This is also because the ratios represent the tan of the angle that the adjacent side makes with the hypotenuse and this angle of 22° is same in both triangles

The product of two numbers is 1296. If one number is16 times the other, find the number.

Answers

16y x y = 129616y^2 = 129681 y = 1296y = 9

your aanswer is 9 ⚡

The value of numbers are,

⇒ 9 and 16

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

We have to given that;

The product of two numbers is 1296.

And, one number is 16 times the other,

Let first number = x

Hence, Second number is, 16x

So, We get;

⇒ 16x × x = 1296

⇒ 16x² = 1296

⇒ x² = 81

⇒ x = 9

Hence, first number = 9

And, Second number is,

= 16x

= 16 x 9

= 144

Thus, The value of numbers are,

⇒ 9 and 16

Learn more about the multiplication visit:

https://brainly.com/question/10873737

#SPJ5

ANSWER THIS FIRST GET BRAINLESS W EXPLANATION!
3. Combine terms: 12a + 26b -4b – 16a.

(a) 4a + 22b,

(b) -28a + 30b,

(c) -4a + 22b,

(d) 28a + 30b.

Answers

To solve this equation by combining terms, the answer will be: (c) -4a + 22b.

How to solve the equation

To solve the equation, we need to combine like terms together. This means that the figures with the suffix, a will come together, while those with the suffix, b will also align themselves. Going by this rule, we will have:

12a -16a + 26b -4b.

= -4a + 22b

When a higher number is to be subtracted from a smaller number, the result will be a negative number as is the case with the terms that have the 'a' initials.

Learn more about combining terms here:

https://brainly.com/question/29298802

#SPJ1

In the diagram shown, Δ ABC is equilateral. AD is an altitude.

10). ∠ ABD = ______.

11). ∠ ADB = ______.

12). ∠ BAD = _____.

13). ∠ CAD = _____.

Suppose AB = 6. Find:

14). BD

15). AD

16). Area of Δ ABC

Answers

The missing sides of the triangle are

10). ∠ ABD = 60 degrees

11). ∠ ADB = 90 degrees

12). ∠ BAD = 30 degrees

13). ∠ CAD = 30 degrees

How to find the missing sides in the triangle

14. BD is half of the length = BC / 2 = 6/2 = 3

15. AD is the height this is solved using Pythagoras theorem as below

AD^2 = AB^2 - BD^2

AD^2 = 6^2 - 3^2

AD^2 = 36 - 9

AD = sqrt (27)

16. Area of Δ ABC

= 1/2 * base * height

= 1/2 * 6 * sqrt (27)

= 9 sqrt (3)

= 15.59 square units

Learn more about area of triangles at

https://brainly.com/question/17335144

#SPJ1

K
The reading speed of second grade students in a large city is approximately normal, with a mean of 88 words per
minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (f).
(a) What is the probability a randomly selected student in the city will read more than 94 words per minute?
The probability is 0.2743.
(Round to four decimal places as needed.).
Interpret this probability. Select the correct choice below and fill in the answer box within your choice.
OA. If 100 different students were chosen from this population, we would expect
per minute.
OB. If 100 different students were chosen from this population, we would expect
minute.
OC. If 100 different students were chosen from this population, we would expect
per minute.
to read more than 94 words
to read exactly 94 words per
to read less than 94 words

Answers

If 100 different students were chosen from this population, we would expect approximately 27 of them to read more than 94 words per minute. Therefore, the correct choice is (A).

How to explain the probability

The probability that a randomly selected student in the city will read more than 94 words per minute is 0.2743.

z-score = (x - μ) / σ = (94 - 88) / 10 = 0.6

Therefore, the probability of a z-score being greater than 0.6 is:

P(Z > 0.6) = 1 - P(Z < 0.6) = 1 - 0.7257 = 0.2743

Learn more about probability on

https://brainly.com/question/9333205

#SPJ1

help with calculus. determine wheter each labeled point is an absolute maximum or minumum OR a relative maximum or minimum or neither

Answers

The relative maximum and minimum point as well as the absolute maximum and minimum points based on labeled points on the graph are;

Points 1, 3, and 5 are relative maximum points

Points 2 and 4 are relative minimum points

Point 5 is an absolute maximum point

Point 2 is an absolute minimum point

What is a relative maximum point?

A relative maximum is a point in which the maximum with regards to the immediate surrounding points.

Therefore, the relative maximum points are;

The points 1, 3, and 5

The relative minimum points are points that are the minimum points, when compared with the surrounding points

The relative minimum are the points 2 and 4

The absolute maximum is the point which is at the highest point on the graph

The absolute maximum on the graph is therefore, the [oint 5

The absolute minimum on the graph is the point which is the minimum point compared to all other points

Therefore, the absolute minimum point is the point 2

Learn more on the absolute maximum and minimum points of a graph here: https://brainly.com/question/29997563

#SPJ1

Pedrobuysawheelbarrowpricedat$86.Shippingandhandlingareanadditional30%oftheprice.HowmuchshippingandhandlingwillPedropay?

Answers

The price of the wheelbarrow is $86, and Pedro will need to pay an additional 30% of the price for shipping and handling.

To calculate the shipping and handling cost, we can first find 30% of the price of the wheelbarrow:

30% of $86 = 0.3 x $86 = $25.80

Therefore, Pedro will need to pay $25.80 for shipping and handling.

Please answer question

Answers

The equation of line perpendicular to the tangent is found to be -

y = -2x + 7.

Give an explanation of the slope-intercept form:

The equation for a line should be written in the slope-intercept form so that the y-intercept (where its line crosses a vertical y-axis) and slope (steepness) are immediately visible. The y = mx + b form is a common name for this form.

Given condition of digression line:

Comparing with the standard form: y = 1/2 x + 7 y = mx + c

m is the slant and c is the y block:

m = 1/2

Let the incline of the line opposite to the digression be M.

Then, at that point, connection between the inclines of opposite lines:

m. M = -1 equation of line perpendicular to the tangent.

y - 3 = M(x - 2)

y - 3 = -2(x - 2)

y = -2x + 4 + 3

y = -2x + 7

Thus, the equation of line perpendicular to the tangent is found to be -

y = -2x + 7.

Know more about the slope intercept form:

brainly.com/question/1884491

#SPJ1

Complete question:

The circle has the centre at (2,3). The equation of the tangent of the line on the circle : y = 1/2 x + 7. What is equation of line perpendicular to the tangent.

A rectangle has a height of 4x and a width of 3x +1. Express the area of the entire rectangle. Expression should be expanded. Area =

Answers

Answer:

12[tex]x^{2}[/tex]+4x

Step-by-step explanation:

area = width * height

substitution: area = (3x+1)*4x

distributive property: area = (4x*3x)+(4x*1)

simplify: area = 12[tex]x^{2}[/tex]+4x

what is the formula for finding the surface of a cone

Answers

Answer:

Formula for finding the surface area of a cone is shown below

[tex]\pi \: r {}^{2} + \pi \: rl \\ or \\ \pi(r + l)r[/tex]

The formula for finding the surface area of a cone is:

Surface area = πr² + πrl

Where:

π is the mathematical constant pi (approximately 3.14159)

r is the radius of the base of the cone

l is the slant height of the cone, which can be calculated using the Pythagorean theorem (l² = r² + h²), where h is the height of the cone

The interest earned on rs15000 in 3 years at simple interest is rs5400 find the rate of interest per anunm

Answers

Answer:

12%

Step-by-step explanation:

Let the rate of interest be R%
r = R% as decimal =R/100

Simple interest earned for 3 years at rate r on ₹15,000 = ₹5,400

The formula for interest earned is given by
I = Prt
where P is the principal amount (15,000)

r = annual interest rate as a decimal (to be determined)

t = number of years

Plugging in known values we get

5400 = 15000 x r x 3

= 45000 x r

r = 5400/45000

r = 0.12

Rate of interest as a percentage = r x 100 = 0.12 x 100 = 12%

the day before Valentine's Day a store has 400 red roses and 200 boxes of chocolate. After the store opens at 9 a.m. half of the available roses are bought every 2 hours. 15% of the boxes are bought every hour. a. Find a formula that represents the number of red roses left t hours before the store opens. b. Find a formula that represents the number of box chocolates left t hours after the store opens. c. At what time will the number of roses be equal to the number of boxes of chocolates. d. How many boxes of chocolate are left at 12:30 in the afternoon? Round your answer to make sense in this context of the problem. e. Suppose you want to buy that special someone 36 red roses at the store. What is the latest you can arrive to successfully make your purchase?

Answers

Answer:

Step-by-step explanation:

a. The number of red roses left t hours before the store opens can be represented by the formula:

N(t) = 400 * (1/2)^(t/2)

Here, we're dividing the number of available roses by 2 every 2 hours, so the exponent t/2 represents the number of 2-hour intervals that have passed since the store opened.

b. The number of box chocolates left t hours after the store opens can be represented by the formula:

M(t) = 200 * (0.85)^t

Here, we're multiplying the number of available boxes by 0.85 every hour, so the exponent t represents the number of hours that have passed since the store opened.

c. We need to find the time t when the number of roses is equal to the number of boxes of chocolates:

400 * (1/2)^(t/2) = 200 * (0.85)^t

Dividing both sides by 200:

2 * (1/2)^(t/2) = 0.85^t

Taking the logarithm of both sides:

log(2) - (t/2) * log(2) = t * log(0.85)

Simplifying:

t * (log(0.85) + (log(2)/2)) = log(2)

t = log(2) / (log(0.85) + (log(2)/2))

Using a calculator, we get:

t ≈ 11.9 hours

Therefore, the number of roses will be equal to the number of boxes of chocolates approximately 11.9 hours before the store opens, or around 9 p.m. on the day before Valentine's Day.

d. To find the number of boxes of chocolate left at 12:30 p.m. (3.5 hours after the store opens), we can use the formula:

M(3.5) = 200 * (0.85)^3.5

M(3.5) ≈ 97.4

Therefore, there are approximately 97 boxes of chocolate left at 12:30 p.m.

e. To buy 36 red roses, we need to find the latest time we can arrive before the store runs out of roses. We can set N(t) equal to 36 and solve for t:

400 * (1/2)^(t/2) = 36

Dividing both sides by 400:

(1/2)^(t/2) = 0.09

Taking the logarithm of both sides:

t/2 * log(1/2) = log(0.09)

Simplifying:

t ≈ 5.2 hours

Therefore, the latest time we can arrive to successfully buy 36 red roses is approximately 5.2 hours before the store opens, or around 3:50 a.m. on the day before Valentine's Day.

A statistics student believes that black cars are less likely to receive tickets for moving violations. Black cars make up 19% of all cars manufactured. The student randomly selects 70 moving violation records and finds that 10 of them involved black cars. The P-value for the test of the hypotheses, H 0: p = 0.19 and H alpha: p less-than 0.19, is 0.24. What is the correct interpretation of this value?

There is a 24% chance of a black car receiving a moving violation.
Assuming the true proportion of black cars that receive moving violations is 0.19, there is a 24% probability that the null hypothesis is true.
Assuming the true proportion of black cars that receive moving violations is 0.19, there is a 24% probability that the sample proportion would be 0.15 or less by chance alone.
Assuming the true proportion of black cars that receive moving violations is less than 0.19, there is a 24% probability that the sample proportion would be 0.15 or less by chance alone.

Answers

The correct interpretation of the P-value in this context is: Assuming the true proportion of black cars that receive moving violations is 0.19, there is a 24% probability that the sample proportion would be 0.15 or less by chance alone. So, the correct answer is C).

In other words, the P-value is the probability of obtaining a sample proportion of 0.15 or less (which corresponds to 10 black cars out of 70 total) if the true proportion of black cars that receive moving violations is actually 0.19.

Since the P-value is relatively high (larger than the significance level of 0.05), we fail to reject the null hypothesis and conclude that there is not sufficient evidence to support the claim that black cars are less likely to receive tickets for moving violations.

So, the correct answer is C).

To know more about Null hypothesis:

https://brainly.com/question/28920252

#SPJ1

Approximately 8% of all people have blue eyes. A random sample of 20 people is selected, find μ. Round to one decimal place. Answer

Answers

Answer:

The mean of a binomial distribution is μ = np, where n is the sample size and p is the probability of success (having blue eyes).

μ = 20 x 0.08

μ = 1.6

Rounded to one decimal place, μ is 1.6.

Brainly pls help me with this

Answers

Answer:

38.part A) 3p = 25.47

partB) $8.49

Step-by-step explanation:

38) to get the price of a game ,$25.47 will be divided by

25.47÷3=$8.49

the price of 1 game =&8.49

to get the price of 1 game , the equation will be

3p=25.47

p=25.47÷3

p=$8.49

Find the value of x. Round to the nearest degree.

Answers

The missing sides of the triangle have been identified here.

How do we solve right triangle?

Trigonometric ratios relate the angles of a right triangle to the lengths of its sides. The three primary trigonometric ratios are sine, cosine, and tangent. If you know the measure of one of the acute angles in the triangle and the length of one of the sides, you can use trigonometric ratios to solve for the length of another side.

1) Sin x = 5/14

x = Sin-1 (5/14)

x = 21°

2) Tan x = 8/5

x = Tan-1 (8/5)

x = 58°

3) Cos x = 9/13

x = Cos-1 (9/13)

x = 46°

4) Cos x = 3/5.8

x = Cos-(3/5.8)

x = 59°

Learn more about right triangle:https://brainly.com/question/27124135

#SPJ1

The missing sides of the triangle have been identified here.

How do we solve right triangle?

1) Sin x = 5/14

x = Sin-1 (5/14)

x = 21°

2) Tan x = 8/5

x = Tan-1 (8/5)

x = 58°

3) Cos x = 9/13

x = Cos-1 (9/13)

x = 46°

4) Cos x = 3/5.8

x = Cos-(3/5.8)

x = 59°

Learn more about right triangle:https://brainly.com/question/27124135

#SPJ1

Cheese costs $4.40 per pound. Find the cost per kilogram. (1 kg ≈ 2.2 lb)

Answers

The cost per kilogram of cheese is found by dividing the cost per pound by the conversion factor 0.45359237 kilograms per pound. The result is $9.68 per kilogram.

Start with the given cost of cheese per pound: $4.40.

To convert from pounds to kilograms, we need to divide by the conversion factor 2.2 (since 1 kilogram is approximately equal to 2.2 pounds). So, we have

1 pound / 2.2 = 0.45359237 kilograms / 1 pound

Note that we can write this as a conversion factor with the pound unit cancelling out, leaving us with kilograms as the desired unit.

Now, we can multiply the cost per pound by the conversion factor to get the cost per kilogram

Cost per kilogram = Cost per pound * (1 pound / 0.45359237 kilograms)

= $4.40 * (1 / 0.45359237)

Evaluating this expression using a calculator gives us

Cost per kilogram = $9.68

So the cost of cheese per kilogram is approximately $9.68.

To know more about Cost:

https://brainly.com/question/16362886

#SPJ1

Using the parallel lines below determine the measure of the smaller angle.
-
x+114
x+72
▸

Answers

The measure of the smaller angle of the co-interior angles is 69°

What the measure of the smaller angle?

Co-interior angles are simply angles that occur in between two parallel lines when they are intersected by a transversal.

The two angles add up to 180º as they occur on the same side of the transversal always.

From the image, the two co-interior angles are:

x + 114

x + 72

Since the two angles add up to 180º.

x + 114 + x + 72 = 180

Solve for x

2x + 186 = 180

2x = 180 - 186

2x = -6

x = -6/2

x = -3

Hence, the measure of the two angles are:

x + 114 = -3 + 114 = 111°

x + 72 = -3 + 72 = 69°

Therefore, the smallest angle is 69 degree.

Learn more about co-interior angles here: https://brainly.com/question/26981078

#SPJ1

Other Questions

****AtteTHINKWhat is the volume of the triangular prism shown below?13 cm8 cm3 cm a project that provides annual cash flows of $2,620 for eight years costs $9,430 today.a.At a required return of 8 percent, what is the NPV of the project? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.b.At a required return of 24 percent, what is the NPV of the project? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)c.At what discount rate would you be indifferent between accepting the project and rejecting it? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Use a table with values x = {2, 1, 0, 1, 2} to graph the quadratic function y = 2x^2. Based on the data above, which region of the world struggled the most economically in the last two decades of the twentieth century? East Asia Eastern Europe and Central Asia Middle East and North Africa Sub-Saharan Africa : Rank the following weak acids from strongest (on the top) to weakest (on the bottom). Drag and drop to order 1 = E propanoic acid 2 = A acetic acid 3 = D hydrocyanic acid 2 = A acetic acid = D hydrocyanic acid = B chlorous acid = c formic acid Consider using a z test to testH0: p = 0.4.Determine the P-value in each of the following situations. (Round your answers to four decimal places.)a) Ha : p > 0.4, z= 1.49 Many situations in business require the use of an "average" function. One example might be the determination of a function that models the average cost of producing an item. In this activity, you will build and use an "average" function. When the iPhone was brand new, one could buy a 8-gigabyte model for roughly $600. There was an additional $70-per month service fee to actually use the iPhone as intended. We will assume for this activity that the monthly service fee does not change. A. Determine the total cost of owning an iPhone after: i. 2 months ii. 4 months iii. 6 months iv. 8 months The man and his bicycle together weigh 200 lb. What power P is the man developing in riding Spercent grade at a constant speed of 15 mi /hr? (1mi- 5280 ft) and (44 f/s-30 mi/h) (0) 220 A-bise (b) 4400 f-lb/sec (o) 2200 -Jbisee 0 wy :987 .6 (d) 189 fl-lb/sec 15 mu in a contemporary asset protection scheme, patrols are not only concerned with observing criminal activity, but also concerned with which of the following ? Write a Dog constructor that has one argument, the name, and calls the super constructor passing it the name and the animal type "dog".Override the method speak() in the Dog class to print out a barking sound like "Woof!". (Do not override the get method. This superclass method should work for all subclasses). There is three more pictures just like this, I really need help putting the (I think genotypes) into which box. More than 56% of people support stricter gun laws. Express the null and alternative hypotheses in symbolic form for this claim (enter as a percentage). what is the best way to continuously capture and share a team's knowledge when might it be okay to censor online content Please help!The presence of tiny hairs, called setae, on the toe pads of some geckos is associated with the ability to adhere to smooth surfaces. This ability allows geckos to climb in areas where many predators cannot. Scientists studying the evolution of setae have identified three closely related species of gecko, only one of which can adhere to smooth surfaces. A model of the evolutionary relatedness between these species is represented in the figure. Which of the following statements is an accurate description of the evolutionary relationships shown in the model?A. G. concinnatus is more closely related to G. antillensis than G. humeralis.B. G. antillensis had more DNA and protein sequences in common with G. humeralis than G. concinnatus.C. G. concinnatus and G. humeralis share the most recent common ancestor, as compared to G. antillensis.D. G. humeralis is more closely related to G. concinnatus than G. antillensis. Please Help! ABC is an isosceles right triangle. 1. A = ___ . 2. B = ____ . 3. If AC = 3, then BC = __ and AB =__. 4. If AC = 4, then BC = __ and AB = ___. 5. If BC = 9, then AB = ____. 6. If AB = 7V2, then BC =___ . 7. If AB = 22, then AC = _____. 1. The One Way Repeated Measures ANOVA is used when you have a quantitative DV and an IV with three or more levels that is within subjects in nature.A. TrueB. False A laptop company has discovered their cost and revenue functions for each day:C(x) = 4x10x + 150 and R(x) = - 3x +150x + 75. If they want to make a profit, what is therange of laptops per day that they should produce? Round to the nearest nunber which would generate aprofit.tolaptops A 48 year old woman presents with malaise, weakness and jaundice. A liver bx. reveals fatty liver, and perivenular and pericellular fibrosis. Which one of the following is MOST likely diagnosis?HemochromatosisReyes syndromePrimary biliary cirrhosisAlcoholic cirrhosisHepatocellular carcinoma A can (355 mL) of Coke has 140 "food calories" (1 food calorie = 1 kcal). How many equivalently sized cans worth of water could be brought to a boil using the energy in a single Coke? Assume the water is initially at room temperature (20C). The density of water is 1000 kg/m3.