Question: A random sample of 41 observations from a normal population possessed a mean p = 88 and a standard deviation s = 6.9. a. Test

A random sample of 41 observations from a normal population possessed a mean p̂ = 88 and a standard deviation s = 6.9.
a. Test H0: σ2 = 30 against Ha: σ2 > 30. Use α = .05.
b. Test H0: σ2 = 30 against Ha: σ2 ≠ 30. Use α = .05.

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