If we reject a null hypothesis which is in fact true, we________.
A) have made a correct decision.
B) have made a Type I error.
C) have made a Type II error.
D) should have used a one-tailed test.

Question

Quizplus · Accepted Answer

Rejecting a null hypothesis when it is actually true is the definition of a Type I error. A Type I error occurs when we reject the null hypothesis when it is true, indicating that there is a significant difference or relationship between the variables being studied when it is not the case.

If We Reject a Null Hypothesis Which Is in Fact