Question

A customer service phone line claims that the wait times before a call is answered by a service representative is less than 3.3 minutes. In a random sample of 62 calls, the average wait time before a representative answers is 3.26 minutes. The population standard deviation is assumed to be 0.14 minutes. Can the claim be supported at α=0.08?

Homework Help:

6VE. Second sample hypothesis testing from word problem to implications for claim, with test statistic (Links to an external site.) (3:26)

Group of answer choices

No, since test statistic is in the rejection region defined by the critical value, reject the null. The claim is the alternative, so the claim is not supported

Yes, since test statistic is in the rejection region defined by the critical value, reject the null. The claim is the alternative, so the claim is supported

Yes, since test statistic is not in the rejection region defined by the critical value, reject the null. The claim is the alternative, so the claim is supported

No, since test statistic is not in the rejection region defined by the critical value, reject the null. The claim is the alternative, so the claim is not supported

Answer 1

So the conclusion is

Yes , since the test statistic is in the rejection region defined by the critical value , Reject the Null. The claim is the alternative. So the claim is supported .