What Happens If Researchers Specify a One-Tailed Hypothesis Test, and the Test

Multiple Choice

What happens if researchers specify a one-tailed hypothesis test, and the test statistic is large (e.g., Z = 3.5) but in the direction opposite of the alternative hypothesis?

A) The test is invalid.
B) The test should be conducted again, but at a different alpha level.
C) The null hypothesis cannot be rejected.
D) The null hypothesis is rejected in favour of the alternative hypothesis.