What is a major difference between a one-tailed significance test and a two-tailed significance test?
A) For a given alpha level, Z (critical) is more extreme for the one-tailed test.
B) For a given alpha level, Z (critical) is less extreme for the one-tailed test.
C) The one-tailed test uses a test statistic, whereas the two-tailed test uses the critical region.
D) The two-tailed test uses a test statistic, whereas the one-tailed test uses the critical region.

Question

Quizplus · Accepted Answer

In a one-tailed test, the critical value (Z critical) is less extreme because the entire alpha level is placed in one tail, making it easier to reject the null hypothesis compared to a two-tailed test where the alpha is split between two tails.

What Is a Major Difference Between a One-Tailed Significance Test