For a One-Tailed Test of Significance, the
A) Probability of a Type

Multiple Choice

For a one-tailed test of significance, the

A) probability of a Type I error is half as big as for a two-tailed test of significance
B) probability of a Type I error is twice as big as for a two-tailed test of significance
C) $\alpha$ level is twice as big as a two-tailed test
D) none of the other alternatives are correct.