The area that encompasses the extreme 5% of a distribution is frequently referred to as
A) the retention region.
B) the rejection region
C) the decision region.
D) none of the above

Question

Quizplus · Accepted Answer

The extreme 5% of a distribution is commonly used as the rejection region in hypothesis testing. This is because if the probability of getting a result within this region is low, it suggests that the sample is unlikely to have come from the null hypothesis population and therefore the null hypothesis can be rejected.

The Area That Encompasses the Extreme 5% of a Distribution