Question: Here is my statistics question based on hypothesis testing and the P value... The IRS claims that the mean wait time for callers during a

Here is my statistics question based on hypothesis testing and the P value...

The IRS claims that the mean wait time for callers during a recent tax filing season was at most 7 minutes. A random sample of 11 callers has a mean wait time of 8.7 minutes and a standard deviation of 2.7 minutes. IS there enough evidence to reject the claim at alpha = 0.10? Notice that the sample size is < 30. That will determine whether you use the t-test or the z-test. See p. 377. Show your hand calculations OR explain how you used Excel to solve.

This has to be explained in a way that I can explain to my peers. Thank you

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