Chapter 11, Problem 30CE

a.

To determine

To state: The null hypothesis and the alternative hypotheses.

b.

To determine

To Find: The test statistic.

c.

To determine

To Find: The p -value of the hypothesis test.

d.

To determine

To Find: The decision about the null hypothesis.

e.

To determine

To Find: The interpretations of the result in the hypothesis testing.