Chapter 22, Problem 4E

a.

To determine

Find the mean of the ${\chi }^2$ statistic.

b.

To determine

Check whether the statistic computed in exercise 2 seems large in comparison to this mean or not.

c.

To determine

Find the statement of null hypothesis .predict by the data.

d.

To determine

Find the critical value for the ${\chi }^2$ statistic at $\alpha =0.05$.

e

To determine

Conclude the null hypothesis at $\alpha =0.05$ by using the critical value.