When a researcher decides to retain the null hypothesis because the rejection region was located in the wrong tail,this is called a
A) Type I error.
B) Type II error.
C) Type III error.
D) correct decision.

Question

Quizplus · Accepted Answer

A Type III error occurs when a researcher incorrectly specifies the direction of the hypothesis test, leading to the rejection region being placed in the wrong tail of the distribution. This is not a standard term in all statistical texts but is used by some to describe this specific mistake.

When a Researcher Decides to Retain the Null Hypothesis Because