For a one-tailed test, the critical value:
A)divides the sampling distribution into three parts.
B)is the number of standard errors away from the sample mean.
C)helps determine if the test statistic falls in the rejection region or not.
D)fails to reject the null hypothesis if the value exceeds the test statistic.

Question

Quizplus · Accepted Answer

The critical value helps determine if the test statistic falls in the rejection region or not. For a one-tailed test, the rejection region is located entirely on one side of the mean, and the critical value is the point on the sampling distribution beyond which a certain percentage of the area falls. If the test statistic falls in this rejection region, the null hypothesis is rejected; otherwise, it is not rejected.

For a One-Tailed Test, the Critical Value