The critical value in a hypothesis test:
A)is a test statistic calculated from the sample.
B)is a contradictory result from a different test.
C)is a cutoff between the rejection and nonrejection regions.
D)is another name for level of significance.

Question

Quizplus · Accepted Answer

The critical value represents the cutoff point between the rejection and nonrejection regions in a hypothesis test. It is typically compared to the test statistic, which is calculated from the sample data, to determine whether the null hypothesis should be rejected. The level of significance, while related to the critical value, is not the same thing as it refers to the probability of rejecting the null hypothesis when it is actually true. Choice A is incorrect as it describes the test statistic, not the critical value. Choice B is incorrect as it does not relate to hypothesis testing.

The Critical Value in a Hypothesis Test