Question: 9.7 A random sample is obtained from a population with variance s2 = 625, and the sample mean is computed. Test the null hypothesis H0

9.7 A random sample is obtained from a population with variance s2 = 625, and the sample mean is computed.

Test the null hypothesis H0 : m = 100 versus the alternative hypothesis H1 : m 7 100 with a = 0.05. Compute the critical value xc and state your decision rule for the following options.

a. Sample size n = 25

b. Sample size n = 16

c. Sample size n = 44

d. Sample size n = 32

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