Applying Statistical Inference: An Example If you reject the null hypothesis when it is actually true,
A)you have committed a Type 1 error.
B)you have committed a Type 2 error.
C)you should report a significant treatment effect.
D)you should revise your level of significance.

Question

Quizplus · Accepted Answer

When you reject the null hypothesis (which states that there is no significant difference between the groups being compared) but it is actually true, you have made a Type 1 error. This means that you have incorrectly concluded that there is a significant difference between the groups when in fact there is not.

Applying Statistical Inference: an Example If You Reject the Null