(a) To write: The null and alternative hypothesis

Question

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Answer 1

Question

Chapter 4, Problem 4.55E

To determine

(a)

To write:

The null and alternative hypothesis

To determine

(b)

To verify:

For the given p-value and justify it.

To determine

(c)

To calculate:

The value of chi-square statistics

To determine

(d)

To write:

A statement that interprets the p-value obtained in part b.

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14 A survey is conducted to determine whether would prefer to work at home, if given the 20 office employees of a certain company chance. The overall results are shown in the first bar graph, and the results broken down by gender are presented in the second. a. Interpret the results of each graph. b. Discuss the added value in including gen- der in the second bar graph. (The second bar graph in this problem is called a side by side bar graph and is often used to show results broken down by two or more variables.) c. Compare the side by side bar graph with the two pie charts that you made for Question 6. Which of the two methods is best for comparing two groups, in your opinion? A Would you prefer to work at home? (n=20) 60 50 40 Percent 20 30 20 30 10 0 No Yes Prefer to work at home? (10 males, 10 females) 80 Percent 60 00 40 40 20- No Yes No Yes Female Male

Frequency 12 Suppose that a random sample of 270 gradu- ating seniors are asked what their immediate priorities are, including whether buying a house is a priority. The results are shown in the following bar graph. a. The bar graph is misleading; explain why. b. Make a new bar graph that more fairly presents the results. Is Buying a House a Priority? 300 250 200 150 100 50 0 Yes No Undecided

Frequency 11 A polling organization wants to find out what voters think of Issue X. It chooses a random sample of voters and asks them for their opinions of Issue X: yes, no, or no opinion. I organize the results in the following bar graph. a. Make a frequency table of these results (including the total number). brocb. Evaluate the bar graph as to whether it biz s b fairly represents the results. of beau no STORE TO OW! vd wob spind 550 540 500 vd 480 420 360 300 250 240 Yes No Undecided Opinion on Issue X

Answer 2

Question

Chapter 4, Problem 4.55E

To determine

(a)

To write:

The null and alternative hypothesis

To determine

(b)

To verify:

For the given p-value and justify it.

To determine

(c)

To calculate:

The value of chi-square statistics

To determine

(d)

To write:

A statement that interprets the p-value obtained in part b.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 4, Problem 4.55E

To determine

(a)

To write:

The null and alternative hypothesis

To determine

(b)

To verify:

For the given p-value and justify it.

To determine

(c)

To calculate:

The value of chi-square statistics

To determine

(d)

To write:

A statement that interprets the p-value obtained in part b.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 4, Problem 4.55E

To determine

(a)

To write:

The null and alternative hypothesis

To determine

(b)

To verify:

For the given p-value and justify it.

To determine

(c)

To calculate:

The value of chi-square statistics

To determine

(d)

To write:

A statement that interprets the p-value obtained in part b.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 4, Problem 4.55E

To determine

(a)

To write:

The null and alternative hypothesis

To determine

(b)

To verify:

For the given p-value and justify it.

To determine

(c)

To calculate:

The value of chi-square statistics

To determine

(d)

To write:

A statement that interprets the p-value obtained in part b.

Answer 6

Chapter 4, Problem 4.55E

To determine

(a)

To write:

The null and alternative hypothesis

Answer 7

Chapter 4, Problem 4.55E

To determine

(a)

To write:

The null and alternative hypothesis

Answer 8

To determine

(b)

To verify:

For the given p-value and justify it.

Answer 9

To determine

(b)

To verify:

For the given p-value and justify it.

Answer 10

To determine

(c)

To calculate:

The value of chi-square statistics

Answer 11

To determine

(c)

To calculate:

The value of chi-square statistics

Answer 12

To determine

(d)

To write:

A statement that interprets the p-value obtained in part b.

Answer 13

To determine

(d)

To write:

A statement that interprets the p-value obtained in part b.

Answer 14

Expert Solution & Answer

Answer 15

Expert Solution & Answer

Answer 16

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Answer 17

Ch. 4 - Prob. 4.1E Ch. 4 - Prob. 4.2E Ch. 4 - Each fall, auditions for the band and orchestra...Ch. 4 - Prob. 4.4E Ch. 4 - For each pair of variables, indicate whether or...Ch. 4 - For each pair of variables, indicate whether or...Ch. 4 - Suppose a study on the relationship between gender...Ch. 4 - Prob. 4.8E Ch. 4 - Prob. 4.9E Ch. 4 - Do grumpy old men have a greater risk of having...

(a) To write: The null and alternative hypothesis

Solution Summary: The author concludes that the null and alternative hypothesis cannot be rejected since the p-value is greater than 0.05.

Concept explainers

Videos

(a)

To write:

The null and alternative hypothesis

(b)

To verify:

For the given p-value and justify it.

(c)

To calculate:

The value of chi-square statistics

(d)

To write:

A statement that interprets the p-value obtained in part b.

Want to see the full answer?

Chapter 4 Solutions

(a) To write: The null and alternative hypothesis

Solution Summary: The author concludes that the null and alternative hypothesis cannot be rejected since the p-value is greater than 0.05.

Concept explainers

Videos

(a) To write: The null and alternative hypothesis

(b) To verify: For the given p-value and justify it.

(c) To calculate: The value of chi-square statistics

(d) To write: A statement that interprets the p-value obtained in part b.

Want to see the full answer?

Chapter 4 Solutions

(a)

To write:

The null and alternative hypothesis

(b)

To verify:

For the given p-value and justify it.

(c)

To calculate:

The value of chi-square statistics

(d)

To write:

A statement that interprets the p-value obtained in part b.