The claim and state H 0 and H a .

Question

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Answer 1

Question

Chapter 8.2, Problem 19E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To find: The critical value and rejection region with α=0.01 .

c.

To determine

To find: The standardized test statistic t.

To determine

d.

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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See data attached. SoftBus Company sells PC equipment and customized software to small companies to help them manage their day-to-day business activities. Although SoftBus spends time with all customers to understand their needs, the customers are eventually on their own to use the equipment and software intelligently. To understand its customers better, SoftBus recently sent questionnaires to a large number of prospective customers. Key personnel—those who would be using the software—were asked to fill out the questionnaire. SoftBus received 82 usable responses, as shown in the file. You can assume that these employees represent a random sample of all of SoftBus's prospective customers. SoftBus believes it can afford to spend much less time with customers who own PCs and score at least 4 on PC Knowledge. Let's call these the "PC-savvy" customers. On the other hand, SoftBus believes it will have to spend a lot of time with customers who do not own a PC and score 2 or less on PC…

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Answer 2

Question

Chapter 8.2, Problem 19E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To find: The critical value and rejection region with α=0.01 .

c.

To determine

To find: The standardized test statistic t.

To determine

d.

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 8.2, Problem 19E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To find: The critical value and rejection region with α=0.01 .

c.

To determine

To find: The standardized test statistic t.

To determine

d.

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 8.2, Problem 19E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To find: The critical value and rejection region with α=0.01 .

c.

To determine

To find: The standardized test statistic t.

To determine

d.

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 8.2, Problem 19E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To find: The critical value and rejection region with α=0.01 .

c.

To determine

To find: The standardized test statistic t.

To determine

d.

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 8.2, Problem 19E

a.

To determine

To identify: The claim and state H0 and Ha .

Answer 7

Chapter 8.2, Problem 19E

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 with α=0.01 .

Answer 9

b.

To determine

To find: The critical value and rejection region with α=0.01 .

Answer 10

c.

To determine

To find: The standardized test statistic t.

Answer 11

c.

To determine

To find: The standardized test statistic t.

Answer 12

To determine

d.

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

Answer 13

To determine

d.

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

Ch. 8.1 - Prob. 1TY Ch. 8.1 - Prob. 2TY Ch. 8.1 - Prob. 3TY Ch. 8.1 - What is the difference between two samples that...Ch. 8.1 - Explain how to perform a two-sample z-test for the...Ch. 8.1 - Describe another way you can perform a hypothesis...Ch. 8.1 - What conditions are necessary in order to use the...Ch. 8.1 - Prob. 5E Ch. 8.1 - Prob. 6E Ch. 8.1 - Independent and Dependent Samples In Exercises 58,...

The claim and state H 0 and H a .

To identify: The claim and state H0 and Ha .

To find: The critical value and rejection region with α=0.01 .

To find: The standardized test statistic t.

d. 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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d.

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