Using the critical value rule, if a two-sided null hypothesis cannot be rejected for a single mean at a given significance level, then the corresponding one-sided null hypothesis (i.e., the same sample size, the same standard deviation, and the same mean) will ________ be rejected at the same significance level.
A) always
B) sometimes
C) never

Question

Quizplus · Accepted Answer

Even though you are going to a lesser significance level, the null still may be true, and thus you may or may not reject.

Using the Critical Value Rule, If a Two-Sided Null Hypothesis