When hypothesis testing, a more common approach is to use a _____ rather than a _____.
A) two-tailed test; one-tailed test
B) one-tailed test; two-tailed test
C) null hypothesis; research hypothesis
D) research hypothesis; null hypothesis

Question

Quizplus · Accepted Answer

A two-tailed test is more commonly used because it allows for the possibility of a significant difference in either direction, while a one-tailed test only tests for a significant difference in one specific direction.

When Hypothesis Testing, a More Common Approach Is to Use