A One-Tailed Test Is Used

A one-tailed test is used:

A) in any situation where finding statistical significance is important.
B) when you want to minimize the possibility of making a Type II error.
C) if you are interested only in whether the obtained value of the statistic falls in one tail of the sampling distribution for that statistic.
D) if you are interested in bidirectional differences between means (for example, the experimental group mean is either higher or lower than the control group mean) .