Question: 46. Observations of a random sample from a normal population with unknown mean and unknown standard deviation are 25 20 23 28 26

46. Observations of a random sample from a normal population with unknown mean μ

and unknown standard deviation σ are 25 20 23 28 26 21 30 29 23 29 Review Practice Problems 439

(a) Test at the 1% level of significance H0: μ = 25 versus H1: μ = 25.

(b) Find the p-value for the test in (a).

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