Test Hypotheses about a Population Mean with Known Using the Classical Approach
-In a one-tailed test of the hypothesis using the classical method, the critical region is the area under the graph located
A) in the tail.
B) between the critical value and the mean.
C) only at the critical value.
D) below the mean on the side of the graph opposite the critical value.

Question

Quizplus · Accepted Answer

In a one-tailed test using the classical approach, the critical region is defined as the area under the normal distribution curve that is in the tail (either the left or the right tail, depending on the direction of the test). This is where we look for values that are significantly different from the hypothesized mean to either reject or fail to reject the null hypothesis.

Test Hypotheses About a Population Mean with Known Using the Classical