Explanation Calculation: Test statistic for z : The z statistic value for sample test statistic x ¯ is, z = x ¯ − μ ( σ n ) In the formula x ¯ is mean of a simple random sample, μ is value stated in H 0 , σ is known standard deviation, and n is the sample size. Let μ denotes the average wave height. From the given information the value of α is 0.01, and the storm is (perhaps temporarily) increasing above the severe rating. The null and alternative hypothesis is, Null hypothesis: H 0 : μ = 16.4 Alternative hypothesis: H 1 : μ > 16.4 Z-statistic : Substitute x ¯ as 17.3, μ as 16.4, σ as 3.5, and n as 36 in the test statistic formula z = 17.3 − 16.4 ( 3.5 36 ) = 0.9 0

Understandable Statistics: Concepts and Methods

12th Edition

ISBN: 9781337119917

Author: Charles Henry Brase, Corrinne Pellillo Brase

Publisher: Cengage Learning

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Chapter 8.2, Problem 27P

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Check whether the null hypothesis is rejecting or fail to reject by using the critical region method.

Compare the conclusion of critical value method with the P-value method.

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Chapter 8.2, Problem 26P

Chapter 8.2, Problem 28P

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Check whether the null hypothesis is rejecting or fail to reject by using the critical region method. Compare the conclusion of critical value method with the P -value method.

Solution Summary: The author compares the conclusion of critical value method with the P -value method.

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Check whether the null hypothesis is rejecting or fail to reject by using the critical region method.

Compare the conclusion of critical value method with the P-value method.

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Chapter 8 Solutions

Check whether the null hypothesis is rejecting or fail to reject by using the critical region method. Compare the conclusion of critical value method with the P -value method.

Solution Summary: The author compares the conclusion of critical value method with the P -value method.

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Check whether the null hypothesis is rejecting or fail to reject by using the critical region method. Compare the conclusion of critical value method with the P-value method.

Want to see the full answer?

Chapter 8 Solutions

Check whether the null hypothesis is rejecting or fail to reject by using the critical region method.

Compare the conclusion of critical value method with the P-value method.