We have to accept or reject a large shipment of items. For quality control purpose, we collect a sample of 150 items and find 20 defective item in it. The manufacturer claims that at most one in 10 items in the shipment is defective. (a) At 5% level of significance, conduct a one-sided test. Write out Ho and HA (b) Compute the

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

We have to accept or reject a large shipment of items. For quality control purpose, we collect a sample of 150 items and find 20 defective item in it. The manufacturer claims that at most one in 10 items in the shipment is defective. (a) At 5% level of significance, conduct a one-sided test. Write out Ho and HA (b) Compute the p-value. (Round the answer to 4 decimals) (c) At the 5% level of significance, do we have sufficient evidence to disprove this claim? State your reasons

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