Using a One-Tailed Test Allows Us to Increase Statistical Power

Multiple Choice

Using a one-tailed test allows us to increase statistical power over a two-tailed test because it:

A) divides the alpha into two tails but only focuses on one of those tails.
B) divides the alpha into two tails, which reduces the size of each.
C) puts the entire alpha into one tail, increasing the chances of rejecting the null hypothesis.
D) puts the entire alpha into one tail, decreasing the chances of rejecting the null hypothesis.