Question: To test H0:=70 versus H1: <70, a random sample of size n=21 is obtained from a population that is known to be normally distributed. (a)

To test H0:=70 versus H1:<70, a random sample of size n=21 is obtained from a population that is known to be normally distributed.

(a) If the sample standard deviation is determined to be s=51.8, compute the test statistic.

(b) If the researcher decides to test this hypothesis at the =0.01 level ofsignificance, use technology to determine theP-value.

(c) Will the researcher reject the nullhypothesis?

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