Chapter 10, Problem 5CT

a.

To determine

To identify: The claim.

To state: The hypothesis $H_0$ and $H_a$.

b.

To determine

To obtain: The critical value.

To identify: The rejection region.

c.

To determine

To obtain: The chi-square test statistic.

d.

To determine

To check: Whether the null hypothesis is rejected or fails to reject.

e.

To determine

To interpret: The decision in the context of the original claim.