Question: Confi dence Intervals and Two-Tailed Hypothesis Tests Change the null hypotheses of Problem 25 to H0: m 5 21 and H1: m ? 21. Repeat

Confi dence Intervals and Two-Tailed Hypothesis Tests Change the null hypotheses of Problem 25 to H0: m 5 21 and H1: m ? 21.

Repeat parts

(a) and (b).

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