The heights of adult men are normally distributed. The heights (in inches) of 9 adult males are given below. 72, 71, 71, 68, 68.75, 70.25, 72, 70.25, 68.25 A physician believes that the mean height of adult men is larger than 69.9 inches. Test the physician’s claim at the α = 0.05 level of significance.
Mean=70.11
Std=1.58

Answers

Answer 1

Answer:

71

Step-by-step explanation:


Related Questions

which expression is equivalent to m-4/m+4 + (m+2) ?

A. m-4/(m+4)(m+2)
B. (m+4)(m+2)/m-4
C. m-4)(m+2)/m+4
D. m+4/(m-4)(m+2)

Answers

Answer:

C.

Step-by-step explanation:

......................

The expression that is equivalent to the expression (m - 4)/(m + 4) + (m + 2) is {m + m² + 6m + 4}/{m + 4}.

What is algebraic expression?

An expression in mathematics is a combination of terms both constant and variable. For example, we can write the expressions as -

2x + 3y + 5

2z + y

x + 3y

Given is to find the expression is equivalent to -

(m - 4)/(m + 4)  +  (m + 2)

We have the following expression as -

(m - 4)/(m + 4)  +  (m + 2)

{(m - 4) + (m + 2)(m + 4)}/(m + 4)

{(m - 4) + m² + 4m + 2m + 8}/(m + 4)

{m + m² + 6m + 4}/{m + 4}

Therefore, the expression that is equivalent to the expression (m - 4)/(m + 4) + (m + 2) is {m + m² + 6m + 4}/{m + 4}.

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Find the distance between the two points rounding to the nearest tenth (if necessary). (1,−7) and (4,−5)

Answers

Answer:

5

Step-by-step explanation:

distance formula [tex]\sqrt{(4-1)^{2} + (-5+7)^{2}[/tex]

At a bird sanctuary, the population of bluebirds is 120 and is increasing 4% annually. How many bluebirds will there be in 8 years?

Answers

The answer is: 158 birds

4% of 120 is 4.8 birds. So the population is increasing by 4.8 each year. 4.8 x 8 years = 38.4

120 + 38.4 = 158.4

Find the median of the table 20 22 24 26

Answers

Answer:22

Step-by-step explanation:

20 20 20 22 22 24 26 26 26

22 is in the middle, which is the median.

A person that is 5 ft tall that casts a shadow of 4 ft is standing next to a tree that is 9 ft tall. How much of a shadow will it cast?

Answers

Answer:

8 ft tall

Step-by-step explanation:

the person that is 5 ft has a shadow that is 4 foot so its 1 foot off because the direction that the sun's facing you

Can anyone help me with this all i need is an explanation on how to do it?

Answers

Answer:

x = 24

Step-by-step explanation:

Ok so basically the angles shown are vertical angles

One of the properties of vertical angles is that they are congruent

That being said we would use this equation to solve for x

120 = 5x

then you would solve for x

*isolate the variable*

step 1 divide each side by 5

120/5=24

5x/5=x

we're left with x = 24

I hope this helps and if you have anymore questions feel free to ask! :)

12. Li drinks 1 liter of water each day after soccer practice. How many
milliliters of water does she drink after 5 practices?
F. 5,000 milliliters
H. 50 milliliters
G. 500 milliliters
L. 5 liters

Answers

Answer:

F. 5000militres

Step-by-step explanation:

1 litre= 1000ml

1 practice= 1000ml

therefore 5 practices= 5*1000ml

= 5000ml

Evaluate the expression: –5 + 280 + 62.

Answers

Answer:

the answer is 337

Step-by-step explanation:

-5 + 280 + 62

= 337

Answer:

337

Step-by-step explanation:

-5 plus 280 is 275

275 + 62 is...

337

1. Find the measure of the side indicated (x). Round to the nearest tenth. Show your work to support your
answer

Answers

Answer:

Is this for a Trig class?  just wondering

Step-by-step explanation:

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

we want to find the Hypotenuse (Hyp)  and are given an angle and the adjacent side (adj)  sooo use  CAH  , b/c it has all of the pieces

Cos(37) = Adj / Hyp

Cos(37) = 11 / Hyp

swap  Cos(37) and Hyp... an algebra trick you should know from college algebra or where ever you learned algebra

Hyp = 11 / Cos(37)

now solve with your handy TI 83 / 84 / 89   calculator :)  if you don't have one go get one . :D get the 89 if  you are going into engineering classes...  the 83 /84 if not. (obviously there are many many other good choices, i'm not really a calculator salesman on the side :D )

Hyp = 13.77349...

Hyp = 13.8 ( rounded to nearest 10th )  :)

Answer:

13.8

Step-by-step explanation:

cos37 = 11/x

0.79863551 = 11/x

x = 11/0.79863551 = 13.77 or 13.8

x = 12 - 3y
3x + 9y = 24

Answers

Answer:

Cool

Step-by-step explanation:

Thanks !!!

Brainliest for correct answer

Answers

Answer:

113.04

Step-by-step explanation:

IM SO SORRY IF ITS WRONG

PLEASE HELP ASAP
Find the missing side of this right
triangle,
Х
8
16
x = [?]

Answers

Answer:

its is 192 I just took this assignment

please answer asap NO SCAM LINKS.

Answers

ITS D !! since his parents give him 10 dollars every certain time amount, so that means the slope is 10

Help me with this math assignment

Answers

Answer:

24 cubic feet

Step-by-step explanation:

brainliest or 5 stars and heart or BOTH

correct me if im wrong

This is the answer for your question

jorge is playing football. he carries the ball forward 52/3 yards and then moves backwards 1 foot . how far forward is the ball, in feet, from were jorge stared carring the ball.

Answers

Answer:

17 feet

Step-by-step explanation:

52/3= 17 1/3

1 foot is 1/3 of a yard

17 1/3- 1/3 = 17

Ms. Spencer has 15 students in her class. She asks each
student how many siblings they have. She wants to see
which number of siblings is the most common in the class.
Would a dot plot or a histogram be a more appropriate way to display the
data for this situation?
O A. A histogram, because Ms. Spencer wants to show how the data
fall into different intervals or ranges.
B. A histogram, because Ms. Spencer wants to show all of the
individual data values.
O C. A dot plot, because Ms. Spencer wants to show all of the
individual data values,
O D. A dot plot, because Ms. Spencer wants to show how the data fall
into different intervals or ranges.
PREVIOUS

Answers

Answer:

A dot plot, because Ms. Spencer wants to show all individual data values.

Step-by-step explanation:

ap3x approved

1) A store sells small and large TV sets in the ratio 2:3. The total stock is 70
sets.1) How many small and large sets are in stock? 2)If the number of large
sets is increased by 8,what is the new ratio of small to big*

Answers

Answer:

(a)

[tex]Small = 28[/tex]

[tex]Large = 42[/tex]

(b)

[tex]Ratio = 14 : 25[/tex]

Step-by-step explanation:

Given

[tex]L = Large\\ S = Small[/tex]

[tex]S : L = 2 : 3[/tex]

[tex]Total = 70[/tex]

Solving (a): Number of each set.

The small set is calculated as:

[tex]Small = \frac{S}{S + T} * Total[/tex]

[tex]Small = \frac{2}{2+3} * 70[/tex]

[tex]Small = \frac{2}{5} * 70[/tex]

[tex]Small = 0.4 * 70[/tex]

[tex]Small = 28[/tex]

Using complement rule.

[tex]Large = Total - Small[/tex]

[tex]Large = 70 - 28[/tex]

[tex]Large = 42[/tex]

Solving (b): Increase large by 8.

The ratio is then calculated as:

[tex]Ratio = Small : Large + 8[/tex]

[tex]Ratio = 28 : 42 + 8[/tex]

[tex]Ratio = 28 : 50[/tex]

Divide by 2

[tex]Ratio = 14 : 25[/tex]

Big chickens: A report from a poultry industry news Web site stated that the weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1376 grams and standard deviation 183 grams. Use the TI-84 PLUS calculator and round your answers to at least two decimal places. (a) Find the 24th percentile of the weights. (b) Find the 86th percentile of the weights. (c) Find the second quartile of the weights. (d) A chicken farmer wants to provide a money-back guarantee that his broilers will weigh at least a certain amount. What weight should he guarantee so that he will have to give his customers' money back only 1% of the time

Answers

Answer:

i think its b

Step-by-step explanation:

Question 6 (Essay Worth 6 points) (05.03)Sue has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. Calculate the area of the polygon. Be sure to show all your work and explain your answer. Six-sided polygon that includes two isosceles right triangles, one with height and base of 25 feet, the other height and base of 8 feet, and one rectangle measuring 35 feet by 8 feet.

Answers

Answer The answer is 544

Step-by-step explanation: You can make two triangles and a rectangle. The triangle at the left top you do:

25 x 8= 200

The triangle at the bottom you do:

8 x 8= 64

The rectangle which is in the middle you do:

35 x 8= 280

Then you add all of them to get your answer:

280 + 200 + 64= 544

Hope this helped

Answer:

someone give this man branliest

Step-by-step explanation:

What is Theoretical Probability in your own words ?​

Answers

Answer:

Theoretical probability is a method to express the likelihood that something will occur. It is calculated by dividing the number of favorable outcomes by the total possible outcomes. The result is a ratio that can be expressed as a fraction (like 2/5), or a decimal.

Step-by-step explanation:

Rebecca paid $25.80 to place an advertisement in a local newspaper. The total cost is determined by a
$5.00 set up cost and then a $0.40 per word cost. How many words were in Rebecca's
advertisement?

Answers

52 words, you subtract 5.00 then divide 20.80 by 0.04 and get 52

If a dozen dozen candies cost a half-a-dozen dimes a dozen, how much will a half-a-dozen dozen candies cost?

Answers

Answer:

74

Step-by-step explanation:

The cost of half-a-dozeon dozen candies for this case will be $3.6

How much a dozen consists of ?

A dozen of a thing means 12 of such thing is in consideration. If we say we have a dozen pencils, then twe mean we have 12 pencils.

For this case, it is given that:

Cost of a dozen dozen candies = half a dozen dimes a dozenCost of a half a dozen dozen candies = ? (to find)

A dozen contains 12 quantities.

A dozen dozen candies means 12 times 12 = 144 candies

half a dozen dimes dozen cost = (12/2) × 12 dimes = 72 dimes

That means:

144 candies cost 72 dimes.

Dividing both quantities by 144 to get price of 1 candy:

144/144 = 1 candy's price = 72/144 dimes = 0.5 dimes = 0.05 dollars (1 dime = 0.1 dollars)

Half a dozen times dozen candies = 72 candies

1 candy costs 0.05 dollars

72 candies cost [tex]72 \times 0.05 = 3.6[/tex] dollars.

Thus, the cost of half-a-dozeon dozen candies for this case will be $3.6

Learn more about forming equations here:

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29. The table shows the average annual salary in dollars based on the minimum level of education required for two occupations. Based on the average annual salaries in the table, how much more would an accountant eam than a tax preparer over a 30 year career? Occupations Occupation Average Annual Salary (dollars) Level of Education Required Accountant 71,040 41,700 Bachelor's degree High school diploma Tax preparer A $112,740 B. $3,382,200 C. $880,200 D. $1,251,000​

Answers

Answer:

c. 880,200

Step-by-step explanation:

ur welcome

In 42 of the 64 years from 1950 through 2014,the S& P 500 finished higher after the first five days of trading (in 2011 there was virtually no change). In 37 out of 42 years, the S&P 500 finished higher for the year. Is a good first week a good omen for the upcoming year? The following table gives the first-week and annual performance over this 64-year period.

S&P 500's Annual Performance
First week Higher Lower Total
Higher 37 5 42
Lower 11 11 22
Total 48 16 64

a) If a year is selected at random,
what is the probability that the S&P 500 finished lower for the year?

b) Given that the S&P finished lower after the first five days of trading,
what is the probability that it finished lower for the year?

c) Are the two events "first week performance" and "annual performance"
independent or dependent? Explain why.

Answers

Answer:

what website or book is that?

if x = –2 ,then find the value of x³ –2x + 1​

Answers

Answer:

- 3

Step-by-step explanation:

Substitute x = - 2 into the expression , that is

(- 2)³ - 2(- 2) + 1

= - 8 + 4 + 1

= - 3

Which two statements are true according to the law of supply? A decrease in demand leads to an increase in supply. A decrease in demand leads to a decrease in supply. There is no change in demand or supply. A decrease in price leads to a decrease in supply. An increase in price leads to an increase in supply.

subject is economics

Answers

Answer:

b and c

Step-by-step explanation:

a decrease in demand leads to a decrease in supply. and if there is no change in demand or supply.

Jim takes out a mortgage for 30 years at an interest rate of 2.49% and his monthly repayments are $986.50. What is the principal loan amount? Round your answer to the nearest ten thousand dollars. Do NOT round until you have calculated the final answer.

Answers

Answer:

250000

Step-by-step explanation:

P=986.50(1-(1+.0249/12)^-(12)(30) Then divide the answer you get by (.0249/12)

Answer: 250,000

Step-by-step explanation:

We must apply the formula for P0, that is,

P0=986.50(1−(1+0.024912)−30⋅12)(0.024912),

which gives P0=$250,000 to the nearest $1.

Myles has a room that is 300 m². If he wants to tile the room using 5 cm x 5 cm tiles, how many whole tiles will he have to use?

Answers

Answer:

Number of whole tiles need = 120,000 tiles

Step-by-step explanation:

Given:

Area of room = 300 m²

Dimension of each tile = 5cm x 5cm

Find:

Number of whole tiles need

Computation:

Dimension of tile in meter = 5 /100 = 0.05 m

Area of each tile = 0.05 x 0.05

Area of each tile = 0.0025 m²

Number of whole tiles need = Area of room / Area of each tile

Number of whole tiles need = 300 / 0.0025

Number of whole tiles need = 120,000 tiles

Total 120,000 tiles need to cover 300 m² room.

Try to find this answer! Thank you!

Answers

418,200 - 326,700 = 91,500

the measures of a triangle are in the ratio 2:3:5. what are the measures of the angles?
(give all 3 angle measurements pls)

Answers

9514 1404 393

Answer:

  36°, 54°, 90°

Step-by-step explanation:

We have to assume that the given measures are angle ratios, not side ratios. Sides in the ratios 2:3:5 will not form a triangle.

For some multiplier x, the angle values will total 180°.

  2x +3x +5x = 180

  x = 180/(2+3+5) = 18

Then the angle measures are ...

  2x° = 2·18° = 36°

  3x° = 3·18° = 54°

  5x° = 5·18° = 90°

The angle measures are 36°, 54°, and 90°.

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