Explanation Calculation: Test statistic for t : The t statistic value for sample test statistic d ¯ is, t = d ¯ − μ d ( s d n ) In the formula d ¯ is sample test statistic, μ d is specified in H 0 , s σ is sample standard deviation of the differences d , and n is the number of data pairs. Let μ d denotes the population mean of the differences. From the given information the value of α is 0.05, and the population mean percentage increase in corporate revenue is different from the population mean percentage increase in CEO salary. The null and alternative hypothesis is, Null hypothesis: H 0 : μ d = 0 Alternative hypothesis: H 1 : μ d ≠ 0 T-statistic : Substitute d ¯ as 2.25, μ d as 0, s σ as 7.78, and n as 8 in the test statistic formula t = 2.25 − 0 ( 7.78 8 ) = 2

WebAssign Printed Access Card for Brase/Brase's Understandable Statistics: Concepts and Methods, 12th Edition, Single-Term

12th Edition

ISBN: 9781337652551

Author: Charles Henry Brase, Corrinne Pellillo Brase

Publisher: Cengage Learning

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Chapter 8.4, Problem 23P

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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 8.4, Problem 22P

Chapter 8.4, Problem 24P

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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. The null hypothesis is not rejected.

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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.

Solution Summary: The author compares the conclusion of critical value method with the P -value method. The null hypothesis is not rejected.

Concept explainers

Videos

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.