A sample of n 13 observations has a sample mean of x 2 879 If an assumed known standard deviation of 0 325 is used, calculate the p values for the hypothesis testing problems (a) H0 n 3 0 versus HA 3 0 (b) H0 3 1 versus HA 3 1

Question: A sample of n = 13 observations has a sample mean of -x = 2.879. If an assumed known standard deviation of = 0.325

A sample of n = 13 observations has a sample mean of -x = 2.879. If an assumed known standard deviation of σ = 0.325 is used, calculate the p-values for the hypothesis testing problems
(a) H0: n = 3.0 versus HA: μ ≠ 3.0
(b) H0: μ > 3.1 versus HA: μ < 3.1

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