The claim and state H 0 and H a .

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Answer 1

Question

Chapter 8.1, Problem 24E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To find: The critical value and rejection region for a one-tailed test with α=0.01 .

c.

To determine

To find: The standardized test statistic z.

d.

To determine

To decide: Whether to reject or fail to reject the null hypothesis at a level of significance of α=0.01 .

e.

To determine

To interpret: The decision in the context of the original claim.

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c. What are the first and third quartiles? First Quartiles (to 1 decimals) Third Quartiles (to 4 decimals) × ☑ Which companies spend the most money on advertising? Business Insider maintains a list of the top-spending companies. In 2014, Procter & Gamble spent more than any other company, a whopping $5 billion. In second place was Comcast, which spent $3.08 billion (Business Insider website, December 2014). The top 12 companies and the amount each spent on advertising in billions of dollars are as follows. Click on the datafile logo to reference the data. DATA file Company Procter & Gamble Comcast Advertising ($billions) $5.00 3.08 2.91 Company American Express General Motors Advertising ($billions) $2.19 2.15 ETET AT&T Ford Verizon L'Oreal 2.56 2.44 2.34 Toyota Fiat Chrysler Walt Disney Company J.P Morgan a. What is the mean amount spent on advertising? (to 2 decimals) 2.55 b. What is the median amount spent on advertising? (to 3 decimals) 2.09 1.97 1.96 1.88

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Answer 2

Question

Chapter 8.1, Problem 24E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To find: The critical value and rejection region for a one-tailed test with α=0.01 .

c.

To determine

To find: The standardized test statistic z.

d.

To determine

To decide: Whether to reject or fail to reject the null hypothesis at a level of significance of α=0.01 .

e.

To determine

To interpret: The decision in the context of the original claim.

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Answer 3

Question

Chapter 8.1, Problem 24E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To find: The critical value and rejection region for a one-tailed test with α=0.01 .

c.

To determine

To find: The standardized test statistic z.

d.

To determine

To decide: Whether to reject or fail to reject the null hypothesis at a level of significance of α=0.01 .

e.

To determine

To interpret: The decision in the context of the original claim.

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Answer 4

Question

Chapter 8.1, Problem 24E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To find: The critical value and rejection region for a one-tailed test with α=0.01 .

c.

To determine

To find: The standardized test statistic z.

d.

To determine

To decide: Whether to reject or fail to reject the null hypothesis at a level of significance of α=0.01 .

e.

To determine

To interpret: The decision in the context of the original claim.

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Answer 5

Chapter 8.1, Problem 24E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To find: The critical value and rejection region for a one-tailed test with α=0.01 .

c.

To determine

To find: The standardized test statistic z.

d.

To determine

To decide: Whether to reject or fail to reject the null hypothesis at a level of significance of α=0.01 .

e.

To determine

To interpret: The decision in the context of the original claim.

Answer 6

Chapter 8.1, Problem 24E

a.

To determine

To identify: The claim and state H0 and Ha .

Answer 7

Chapter 8.1, Problem 24E

a.

To determine

To identify: The claim and state H0 and Ha .

Answer 8

b.

To determine

To find: The critical value and rejection region for a one-tailed test with α=0.01 .

Answer 9

b.

To determine

To find: The critical value and rejection region for a one-tailed test with α=0.01 .

Answer 10

c.

To determine

To find: The standardized test statistic z.

Answer 11

c.

To determine

To find: The standardized test statistic z.

Answer 12

d.

To determine

To decide: Whether to reject or fail to reject the null hypothesis at a level of significance of α=0.01 .

Answer 13

d.

To determine

To decide: Whether to reject or fail to reject the null hypothesis at a level of significance of α=0.01 .

Answer 14

e.

To determine

To interpret: The decision in the context of the original claim.

Answer 15

e.

To determine

To interpret: The decision in the context of the original claim.

Answer 16

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Answer 17

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Answer 18

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Answer 19

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The claim and state H 0 and H a .

Solution Summary: The author explains the claim and the alternative hypothesis.

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To identify: The claim and state H0 and Ha .

To find: The critical value and rejection region for a one-tailed test with α=0.01 .

To find: The standardized test statistic z.

To decide: Whether to reject or fail to reject the null hypothesis at a level of significance of α=0.01 .

To interpret: The decision in the context of the original claim.

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Chapter 8 Solutions