A researcher who rejects a null hypothesis when in fact it is true:
A) is committing a Type I error
B) is committing a Type II error
C) is committing neither a Type I nor Type II error
D) is typically sure that he has made an incorrect decision
E) none of the above

Question

Quizplus · Accepted Answer

Rejecting a null hypothesis when it is actually true is the definition of a Type I error.

A Researcher Who Rejects a Null Hypothesis When in Fact