_____ 16. As the probability of a Type I error is reduced, the probability of a Type II error:

a.increases

b.decreases

c.stays the same

d.cannot be determined

_____ 17. Holding everything else constant, what effect does increasing the sample size have on the value of the computed Z-value?

a.increases Z

b.decreases Z

c.has no effect on Z

d.depends on the situation

_____ 18. If the null hypothesis is in reality true, and my statistical decision is to reject the null then:

a. a correct decision has been made

b. a type I error has been made

c. a type II error has been made

d. both b and c