A university wants to investigate how much its students spend on textbooks each semester. Since all
students must purchase their materials through the campus bookstore, a random sample of 15 student
accounts is selected, and the averagą dollar amount spent on textbooks is calculated.
Which of these circumstances would make it inappropriate to use this sample to calculate a 95%
confidence interval for the mean amount spent on books by students at this university?
The standard deviation of the textbook costs is below $30.
The standard deviation of the textbook costs is larger than $100.
A stem-and-leaf plot of the textbook costs shows a roughly symmetric distribution
A histogram of the textbook costs is calculated and shows a slight skew to the right.
A boxplot of the textbook costs shows two students whose amounts would qualify as outliers,

Answers

Answer 1

Answer:

Step-by-step explanation:


Related Questions

GIVING AWAY BRAINLIEST TO FIRST AND CORRECT ANSWER!!! Rewrite the following function in slope intercept form.

an=3+(n-1)(-6/7)

OPEN ENDED WHOEVER ANSWERS BEST GETS BRAINLIEST

Answers

Answer:

PP power

Step-by-step explanation:

:)

Answer:

Step-by-step explanation:

Slope = -6/7

(1,3) and (2,15/7) are points on the line.

y-3 = -(6/7)(x-1)

y = -(6/7)x + 21/7

At a restaurant, the bill comes to $80. You decide to leave a 12 % tip. How much did you leave for the tip?​

Answers

Answer: 0.12

Step-by-step explanation: I think that should be the answer if not im sorry i just wanted to help. :(

should be 9.6 dollars, or 10 if you round up.

how: take the total price, times it times .12%.
so 80 x .12

Kriti has 20 coins that make up a total of 41 in the denomination of 1-rupee, 2-rupee, and 5-rupee coins.
The number of 2-rupee coins are three times the number of 5-rupee coins.

Answers

Answer:

8

Step-by-step explanation:

Let us assume the following things

x be no of 5 rupees coins

y be no of 2 rupees coins

z be no of 1 rupees coins

Now accoridng to the question

5x + 2y + z = 41

x + y + z = 20

y = 3x

Now do the elimination of variables

So,  

4x + y = 21

7x= 21

x = 3

y = 9

z= 8

hence, the 1-rupee coin would be 8

1.5 units
2 units
3 units
3.5 units


Those are the answer options



I need help fast

Answers

Answer:

3 units

Step-by-step explanation:

There are 3 squares between them.

40 POINTS !! 40 POINTS !!

PLEASE HELP , DONT SKIP !

NO LINKS OR FILES.

Answers

Answer:

UV=7,-3

Step-by-step explanation:

How many people out of 100,000 will survive until age 90?

Answers

Answer:

81.26

Step-by-step explanation:

This amount of people survived until 90 according to an article:

20,898 + 15,034 + 26,183 + 21,196 + 15,318 + 26,479 + 15,864 + 9,952 + 21,357 = 172,281

"172,281" as a percentage is:

81.26

The percentage people out of 100,000 will survive until age 90 would be 81.26.

How to calculate unit price of something?

Unit means 'single entity', the fundamental constructing block. Usually, it is 1 in mathematics and science.

Thus, unit price of something is price of 1 thing.

So, suppose we're taking about price of mangoes, then unit price will denote the price of 1 mango.

The data is given in the image attached below;

We need to find How many people out of 100,000 will survive until age 90.

A percentage is a minimum number or ratio that is measured by a fraction of 100.

The amount of people survived until 90 according to an article:

20,898 + 15,034 + 26,183 + 21,196 + 15,318 + 26,479 + 15,864 + 9,952 + 21,357

= 172,281

Therefore, "172,281" as a percentage is 81.26.

The percentage people out of 100,000 will survive until age 90 would be 81.26.

Learn more about unit price here:

https://brainly.com/question/945712

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Census data from a city of 80,000 residents produced the income distribution shown here:
110
60
Income (thousand dollars)
Suppose that we were to take random samples of 5 residents from this population and calculate the sample
mean income of the residents in each sample.
What will be the shape of the sampling distribution of the sample mean?

Answers

Answer:

Skewed to the right

Look at dis \/

The shape of the sampling distribution of the sample mean will match the shape of the parent population since the sample size is small (n=5<30), although it will be closer to normal than the parent population is.

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whats going on ;)

Question 8 of 10
Simplify (7 + 1)2 – (11 + 32) - 4.

Answers

Answer:

Does anyone watch shaurya aur anokhi ki on star plus an Indian serial you'll love it I guarantee

Stephanie is going to paint the walls and ceiling of her bedroom. Her room is 18 feet long, 17 feet wide and 9 feet high.



What is the square footage (area) of the walls and ceiling that Stephanie will be painting?

The square footage Stephanie will be painting is ________ square feet. (Enter the number only)





How many gallons of paint does Stephanie have to purchase if each gallon of paint covers 250 square feet?

Stephanie will have to buy _____ gallons of paint. (Remember, you can only purchase a WHOLE number of gallons;Enter the number only)



If each gallon cost $23.75, how much will Stephanie spend on paint?

Stephanie will spend $________ on paint. (Enter the number only)

Answers

Yes this is correct I toke the test

Answer:

55

Step-by-step explanation:

Niamh runs 6 km in 30-minutes what is the average speed in km h

Answers

Answer:

12 km/hr

Step-by-step explanation:

The average speed is 12 km/hr.

It is to find the average speed in km /h.

What is speed?

Speed is measured as the ratio of distance to the time in which the distance was covered.

Given that :

Distance covered by Niamh = 6 km

Time =30minutes=30/60hour

=1/2hour

∴ The average speed=Total distance/Total time

The average speed=6*2/1

The average speed=12 km/hr.

So, the average speed is 12 km/hr.

Learn more about speed here:

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A couple is trying to save for down payment on their first house. They wish to have $25,000 in 8 years. How much should they invest monthly in an account that pays 6.1% compounded annually

Answers

Answer:

I this 500$

Step-by-step explanation:

VERY EASY, WILL GIVE 50 POINTS FOR CORRECT ANSWER ASAP AND WILL GIVE BRAINLIEST.

Answers

Answer: (4,-11)

Step-by-step explanation: To perform a 180 degree rotation we switch the signs of the coordinates

Answer:

4,-11

Step-by-step explanation:

The answer is 4,-11 because if you think that you go over -4 and go up 11. Now switch the negative sign to the y coordinate because it is a 180 degree turn then you have your answer. 4,-11

pls mark as brainliest!!

If a complete graph represents the road network in a country, it would be advantageous for that country in the even that an infectious disease hits one of the towns on the road network. Yes, it would be advantageous No, it would not be advantageous​

Answers

Answer:

everyone

Step-by-step explanation:

Match the vocabulary to the proper definition.
1. a conclusion based on the results of evidence
2. a question that leads individuals towards a certain answer
the collection, organization, and analysis of numerical
3.
information
a sample in which every member of the population has an
4.
equal chance of being selected; unbiased sample
5. a sampling of a population used to make predictions

Answers

Answer:

I got an answer

Step-by-step explanation:

1 is inference

2 is biased question as individuals are lead towards an answer that aligns with what the one who made the question wants

3 is statistics

4 is random

5 is survey

Help pls this is my first question on here and I need help with this pls. I will give you the brainliest and a thanks!! :)) Can you do 1 and 4 thanks!! :)))

Answers

Circumference = pi x diameter

Pi = 3.142


Answer for Q1 = 18.852

6 x 3.142 = 18.852


Answer for Q4 = 25.136

As it gives the radius, you gotta double the radius to get the diameter of the circle

8 x 3.142 = 25.136


Hope this helps :]

Solve.
b + 2/9 = 1 3/5

Answers

Exact form
B=107/45
Decimal form
B=2.36
Mixed number form
B=2:17/45

Open Picture Need Help With 11 & 12

Answers

Answer:

Step-by-step explanation:

7). (x + 3)(x + 7)

  = x(x + 7) + 3(x + 7)

  = x² + 7x + 3x + 21

  = x² + 10x + 21

8). (4x + 2)(x - 2)

  = 4x(x - 2) + 2(x - 2)

  = 4x² - 8x + 2x - 4

  = 4x² - 6x - 4

9). (3x + 2)(2x + 5)

  = 3x(2x + 5) + 2(2x + 5)

  = 6x² + 15x + 4x + 10

  = 6x² + 19x + 10

10). (x² - 6)(x - 4)

  = x²(x - 4) - 6(x - 4)

  = x³ - 4x² - 6x + 24

11). (x² + 9)(x - 3)

  = x²(x - 3) + 9(x - 3)

  = x³ - 3x² + 9x - 27

12). (4x²- 4)(2x + 1)

  = 4x²(2x + 1) - 4(2x + 1)

  = 8x³ + 4x² - 8x - 4

Cindy works on the weekends at the local coffee shop. Last Saturday she worked 7.5 hours and
on Sunday she worked 8 hours. She earns $9 per hour. How much did she earn last weekend?
F:97.00 G:89.50 H:139.50 J:109.00

Answers

Answer: H. 139.50

Step-by-step explanation:

Multiply 9 by 8 first and you get 72. Then multiply 9 by 7.5 and you get 67.5 then add 72 and 67.5 and you get 139.5 or 139.50

1.ILL GIVE BRAINIEST FOR ANSWER
Chan invested $12,500 in a savings account that pays 2.5% simple interest. How much interest does
he earn each year?
F $350.50
G $312.50
H $322.50
J $325.50

Answers

Answer:

Step-by-step explanation:

If arc AB = 107° and arc BC = 122°, find the value of x.

Answers

Answer:

the value of x is acb 133°

Please help quickly: Thanks!
4 1/4 x 2 x 6 = ?

4 1/4 x 2 x 6 x 3/4 = ?

Answers

Answer for the 1st one: 51
Answer for the 2nd one: 38 1/4

Solve for the area of the triangle in each of the following problems.

Answers

Answer:

area of triangle = 1/2×base×height

area of triangle =1/2×15m×16m

area of triangle =120m²

Find equation to (-3,0),m=5

Answers

Answer:

Step-by-step explanation:

y=5x+15

your most exciting day of school​

Answers

Answer:

first day. yehahhhhhhhh

Answer:

School isn't exciting for me, lol.

Step-by-step explanation:

What are 3 digits that equal 24

Answers

Answer:

1 x 24, 2 x 12, 3 x 8, and 4 x 6.

Hope this helps

Have a great day

Step-by-step explanation:

Answer:

8+8+8 is the answer give brainliest

Calculate the area of the above triangle
07 square units
28 square units
14 square units
30.5 square units

Answers

Answer:

14 square units

Step-by-step explanation:

Equation:

Area of a triangle = h*b/2

Variables:

h = 4 units

b = 7 units

Solve:

h*b/2

= 4 units * 7 units /2

= 14 square units

Please mark brainliest if this helped!

(i will mark brainly)
Use the table to write a proportion.

Answers

Answer:

One proportion is 15 songs / 2.5 hours = 18 songs / h hours.

ok I'll try to answer

first the given 15/2.5=18/h

so the second hour is missing so we have to multiply cross then the result will be

15h=45

divide 15 for 15 and we got h

again divide 45 for 15

[h=3]

I need Help please in this problem

Answers

Answer:

Answer the question yourself and stop being lazy!

Step-by-step explanation:

Question 9 of 10 What is one strategy that can help a person avoid spending too much money on interest when borrowing money? O A. Choosing a credit card with a low minimum monthly payment O B. Choosing a loan with a simple rather than compound interest rate O C. Choosing a credit card with a high minimum monthly payment O D. Choosing a loan with a compound rather than simple interest rate​

Answers

Answer:

Hello There!!

Step-by-step explanation:

The answer is B. Choosing a loan with a simple rather than compound interest rate.

hope this helps,have a great day!!

~Pinky~

Find the missing sides

Answers

Answer: x =1/2

y = [tex]\sqrt{3}[/tex]/2

Step-by-step explanation:

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Help me PLZZ its worth 20 points Helppppp its due today True or false? President Franklin Roosevelt was sworn in after President Kennedy's assassination escribe con letra 0.00125 The function of the liver in humans is to maintain the [glucose] circulating in the blood stream at reasonably constant levels. This is so organs like the brain that use primarily glucose as their carbon source to produce energy via ATP have a steady supply of glucose. It also ensures that the levels of glucose in the blood stream do not get too high. Using the plots from problem 6, discuss why it makes sense that glucokinase in liver would behave differently than the hexokinase in other cells. Fill in the BlankWhen a person leaves their old country, it is called__When a person moves to a new country, its is called__When a person moves, it is called__The reasons a person leaves a country are called__The reasons a person comes to a country are called__ PLS HELP ILL GIVE BRAINLEST!!!!!!!! I have an hour to do this please help I NEED HELP WITH THIS QUESTION ;) What role did Napoleon Bonaparte play in the history of Brazilian Independence? PLEASE HELP ME I WILL HIVE BRAINLIST TO THE CORRECT ANSWER !!!!!!!!!!! Which politicians benefitted the most from the July Days? help me plsssssssss asap simplify the expression GEOMETRY find the angle of PRQ NO LINKS!! Insecurely attached infants are those who respond to their mothers with either Select one: a. egocentrism or empathy. b. anxiety or avoidance. c. conservation or basic trust. d. assimilation or accommodation. What option would be a good adaptation for an animal in a dense RAINFOREST? *A. heavy bodyB. ability to sprintC. ability to blend with multiple colors and patterns A circle with a shaded sector has a circumference of 12 pi millimeters. What is the area of the shaded sector? Express the answer in terms of Pi. Centerville Middle School spends $13 for every workbook it buys. At most how manyworkbooks can Centerville Middle School buy if it has $26 to spend? The photograph shows part of the Great Plains of North America. How doplains form?A. Magma rises at a divergent plate boundary.B. Tectonic movements make folds and faults in the crust.C. Continental plates slip past each other at a transform boundary.D. Water, wind, or glaciers either remove or deposit crust.SUBMIT2 PREVIOUS