The claim and state H 0 and H a .

Question

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Answer 1

Question

Chapter 11.2, Problem 6E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To decide: Whether to use a Wilcoxon signed-rank test or Wilcoxon rank sum test.

c.

To determine

To find: The critical values.

d.

To determine

To find: The test statistic.

e.

To determine

To decide: Whether to reject or fail to reject the null hypothesis.

f.

To determine

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

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Type I and Type I l Errors. In Exercises 29–32, provide statements that identify the type I error and the type II error that correspond to the given claim. (Although conclusions are usually expressed in verbal form, the answers here can be expressed with statements that include symbolic expressions such as p = 0.1. The proportion of people who require no vision correction is less than 0.25.

ANSWERS ALL PARTS A,B,C A) Roll a dice, X=the number obtained. Calculate E(X), Var(X). Use two expressions to calculate variance. B) Two fair dice are tossed, and the face on each die is observed. Y=sum of the numbers obtained in 2 rolls of a dice. Calculate E(Y), Var(Y). C) Roll the dice 3 times, Z=sum of the numbers obtained in 3 rolls of a dice. Calculate E(Z), Var(Z) from the result of part a and b.

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Answer 2

Question

Chapter 11.2, Problem 6E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To decide: Whether to use a Wilcoxon signed-rank test or Wilcoxon rank sum test.

c.

To determine

To find: The critical values.

d.

To determine

To find: The test statistic.

e.

To determine

To decide: Whether to reject or fail to reject the null hypothesis.

f.

To determine

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

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Answer 3

Question

Chapter 11.2, Problem 6E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To decide: Whether to use a Wilcoxon signed-rank test or Wilcoxon rank sum test.

c.

To determine

To find: The critical values.

d.

To determine

To find: The test statistic.

e.

To determine

To decide: Whether to reject or fail to reject the null hypothesis.

f.

To determine

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

Expert Solution & Answer

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Answer 4

Question

Chapter 11.2, Problem 6E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To decide: Whether to use a Wilcoxon signed-rank test or Wilcoxon rank sum test.

c.

To determine

To find: The critical values.

d.

To determine

To find: The test statistic.

e.

To determine

To decide: Whether to reject or fail to reject the null hypothesis.

f.

To determine

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

Expert Solution & Answer

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Answer 5

Chapter 11.2, Problem 6E

a.

To determine

To identify: The claim and state H0 and Ha .

b.

To determine

To decide: Whether to use a Wilcoxon signed-rank test or Wilcoxon rank sum test.

c.

To determine

To find: The critical values.

d.

To determine

To find: The test statistic.

e.

To determine

To decide: Whether to reject or fail to reject the null hypothesis.

f.

To determine

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

Answer 6

Chapter 11.2, Problem 6E

a.

To determine

To identify: The claim and state H0 and Ha .

Answer 7

Chapter 11.2, Problem 6E

a.

To determine

To identify: The claim and state H0 and Ha .

Answer 8

b.

To determine

To decide: Whether to use a Wilcoxon signed-rank test or Wilcoxon rank sum test.

Answer 9

b.

To determine

To decide: Whether to use a Wilcoxon signed-rank test or Wilcoxon rank sum test.

Answer 10

c.

To determine

To find: The critical values.

Answer 11

c.

To determine

To find: The critical values.

Answer 12

d.

To determine

To find: The test statistic.

Answer 13

d.

To determine

To find: The test statistic.

Answer 14

e.

To determine

To decide: Whether to reject or fail to reject the null hypothesis.

Answer 15

e.

To determine

To decide: Whether to reject or fail to reject the null hypothesis.

Answer 16

f.

To determine

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

Answer 17

f.

To determine

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

Answer 18

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Answer 19

Expert Solution & Answer

Answer 20

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Answer 21

Ch. 11.1 - Prob. 1TY Ch. 11.1 - Prob. 2TY Ch. 11.1 - Prob. 3TY Ch. 11.1 - Prob. 1E Ch. 11.1 - When the sign test is used, what population...Ch. 11.1 - Describe the test statistic for the sign test when...Ch. 11.1 - In your own words, explain why the hypothesis test...Ch. 11.1 - Explain how to use the sign test to test a...Ch. 11.1 - List the two conditions that must be met in order...Ch. 11.1 - Prob. 7E

The claim and state H 0 and H a .

Solution Summary: The author explains that the new drug affects the number of headache hours before and after taking the drug.

Concept explainers

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To identify: The claim and state H0 and Ha .

To decide: Whether to use a Wilcoxon signed-rank test or Wilcoxon rank sum test.

To find: The critical values.

To find: The test statistic.

To decide: Whether to reject or fail to reject the null hypothesis.

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

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Chapter 11 Solutions