When alpha is set at 0.05, which of these test scenarios will yield the largest absolute value for Z (critical)?
A) one-tailed test, upper tail
B) one-tailed test, lower tail
C) two-tailed test
D) The Z (critical) value will change only if alpha is changed.

Question

Quizplus · Accepted Answer

In a two-tailed test with alpha set at 0.05, the critical Z value is larger in absolute terms because the alpha is split between the two tails, resulting in more extreme critical values compared to a one-tailed test.

When Alpha Is Set at 0