Question: A random sample of n = 12 observations from a normal population produced = 47.1 and s2 = 4.7. Test the hypothesis H0:

A random sample of n = 12 observations from a normal population produced = 47.1 and s2 = 4.7. Test the hypothesis H0: µ = 48 against H0: µ ≠ 48 at the 5% level of significance.

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