Question: A random sample of 50 measurements resulted in a sample mean of 62 with a sample standard deviation 8. It is claimed that the true

A random sample of 50 measurements resulted in a sample mean of 62 with a sample standard deviation 8. It is claimed that the true population mean is at least 64.
(a) Is there sufficient evidence to refute the claim at the 2% level of significance?
(b) What is the p-value?
(c) What is the smallest value of α for which the claim will be rejected?

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