What is the purpose of the critical value?
A)To determine the size of the region of rejection.
B)To determine the maximum allowable population standard deviation
C)To determine the likelihood that the population mean was obtained by chance
D)To determine the value of z needed to conclude that the population mean was obtained by chance

Question

Quizplus · Accepted Answer

The critical value is used to determine the size of the region of rejection in hypothesis testing. This region is used to determine whether a sample result is statistically significant and supports rejecting the null hypothesis in favor of the alternative hypothesis. The critical value is typically based on the desired level of significance, alpha, and the degrees of freedom in the test.

What Is the Purpose of the Critical Value