In determining the critical value of the test statistic, the area to the right of the critical value is either
a or a/2. It is a for a one- tailed test and a/2 for a two- tailed test.

Question

Quizplus · Accepted Answer

In hypothesis testing, the critical value is determined based on the significance level (α). For a one-tailed test, the entire α is in one tail, while for a two-tailed test, α is split between both tails, hence α/2 in each tail.

In Determining the Critical Value of the Test Statistic, the Area