An adult toy reseller claims that only 4% of his production is defective. In a random sample of 120 items, the defect rate is 4.99%. At the 1% level of significance, test the manager's claim. a) State the null and alternative hypotheses for the test. b) Calculate the value of the test statistic for this test. c) Determine the critical region/regions for this test.

An adult toy reseller claims that only 4% of his production is defective. In a random sample of 120 items, the defect rate is 4.99%. At the 1% level of significance, test the manager's claim. a) State the null and alternative hypotheses for the test. b) Calculate the value of the test statistic for this test. c) Determine the critical region/regions for this test.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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Question

An adult toy reseller claims that only 4% of his production is defective. In a random sample of 120 items, the defect rate is 4.99%. At the 1% level of significance, test the manager's claim.

a) State the null and alternative hypotheses for the test.

b) Calculate the value of the test statistic for this test.

c) Determine the critical region/regions for this test.

d) State the conclusion of this test. Give a reason for your answer.

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