In a hypothesis test the decision was made to not reject the null hypothesis. Which type of mistake could have been made?
A) Type 1.
B) Type 2.
C) Type 1 if it's a one-sided test and Type 2 if it's a two-sided test.
D) Type 2 if it's a one-sided test and Type 1 if it's a two-sided test.

Question

Quizplus · Accepted Answer

When the decision is made to not reject the null hypothesis, the risk is making a Type 2 error, which occurs when the null hypothesis is not rejected even though it is false.

In a Hypothesis Test the Decision Was Made to Not