Question: In a hypothesis test with hypotheses H0 : ,u g 45 and H1 : M > 45, a random sample of 65 elements selected from

In a hypothesis test with hypotheses H0 : ,u g 45 and H1 : M > 45, a random sample of 65 elements selected from the population produced a mean of 47.1. Assume that 0' = 7.5, and that the test is to be made at the 2.5% signicance level. What is the critical value of z? ' -1.65 V -1.96 ' 1.65 V 1.96 What is the value of the test statistic, z, rounded to three decimal places? What is the p-value for this hypothesis test, rounded to four decimal places? Should you reject or fail to reject the null hypothesis in this test? A V

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