Question: To test Upper H 0 : sigma equals 40 H0:=40 versus Upper H 1 : sigma less than 40 H1: <40, a random sample of

To test Upper H 0 : sigma equals 40

H0:=40 versus Upper H 1 : sigma less than 40

H1:<40, a random sample of size n equals 28

n=28 is obtained from a population that is known to be normally distributed.

(a) If the sample standard deviation is determined to be s equals 34.7

s=34.7, compute the test statistic.

(b) If the researcher decides to test this hypothesis at the alpha equals 0.01

=0.01 level ofsignificance, use technology to determine theP-value.

(c) Will the researcher reject the nullhypothesis?

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