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Business / Statistics for Business and Economics 12 / Chapter 7 / Problem 47E

Statistics for Business and Economics | 12th Edition | ISBN: 9780321826237 | Authors: James T. McClave, P. George Benson, Terry T Sincich

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a. Consider testing Under what conditions should you use

Chapter 7, Problem 47E

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QUESTION:

a. Consider testing \(H_0: \mu=80\). Under what conditions should you use the t-distribution to conduct the test?

b. In what ways are the distributions of the z-statistic and t-test statistic alike? How do they differ?

Questions & Answers

QUESTION:

a. Consider testing \(H_0: \mu=80\). Under what conditions should you use the t-distribution to conduct the test?

b. In what ways are the distributions of the z-statistic and t-test statistic alike? How do they differ?

ANSWER:

Step 1 of 3

(a) Consider testing ${H}_{0}:\mu{}=80$ . We have to find under what conditions we can use the t-distribution test.

(b) We have to find what ways are the distributions of the z-statistics and t-test statistic alike and differ.

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