In a one-tail test for the population mean, if the null hypothesis is not rejected when the alternative hypothesis is true:
A)a Type I error is committed.
B)a Type II error is committed.
C)a correct decision is made.
D)a two-tail test should be used instead of a one-tail test.

Question

Quizplus · Accepted Answer

A Type II error occurs when the null hypothesis is not rejected, but the alternative hypothesis is actually true.

In a One-Tail Test for the Population Mean, If the Null