A washing machine manufacturer advertises that the median life of the machines is at least 8 years. A consumer advocacy group located 20 of these machines and found that 12 of them actually lasted less than 8 years, with none of them lasting exactly 8 years. At α α =0.05, test the claim that the median life is less than 8 hours. A. What is the test statistic? B. What is the critical value? C. What is the decision?

A washing machine manufacturer advertises that the median life of the machines is at least 8 years. A consumer advocacy group located 20 of these machines and found that 12 of them actually lasted less than 8 years, with none of them lasting exactly 8 years. At α α =0.05, test the claim that the median life is less than 8 hours. A. What is the test statistic? B. What is the critical value? C. What is the decision?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

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