How do you determine whether or not to reject the null hypothesis?
A)If the Z score is less than -1 or greater than +1
B)If the Z score is greater than +2.5
C)Compare the Z score needed to reject the null hypothesis to the actual sample Z score
D)Compare the standard deviation of the sample to the standard deviation of the population

Question

Quizplus · Accepted Answer

To determine whether or not to reject the null hypothesis, we need to compare the Z score needed to reject the null hypothesis (based on our chosen level of significance) to the actual sample Z score. If the actual sample Z score is equal to or greater than the Z score needed to reject the null hypothesis, we can reject the null hypothesis. If the actual sample Z score is less than the Z score needed to reject the null hypothesis, we fail to reject the null hypothesis.

How Do You Determine Whether or Not to Reject the Null