A one-tailed test ____________ the probability of rejecting the null hypothesis.
A) decreases.
B) increases.
C) has no effect upon.
D) none of these choices are correct.

Question

Quizplus · Accepted Answer

In a one-tailed test, the rejection region is on only one side of the distribution, making it more specific than a two-tailed test. This means that the probability of rejecting the null hypothesis is concentrated in one tail, increasing the probability of rejection compared to a two-tailed test.

A One-Tailed Test ____________ the Probability of Rejecting the Null