9.9 A random sample is obtained from a population with a variance of s2 = 400, and

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9.9 A random sample is obtained from a population with a variance of s2 = 400, and the sample mean is computed to be xc = 70. Consider the null hypothesis H0 : m = 80 versus the alternative hypothesis H1 : m 6 80. Compute the p-value 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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