Harold wants to limit the probability of making a Type I error to 5%. He should ____.
A) use an $\alpha$ = 0.95
B) use a $\beta$ = 0.95
C) use an $\alpha$ = 0.05
D) use a $\beta$ = 0.05
E) collect a large sample

Question

Quizplus · Accepted Answer

To limit the probability of making a Type I error to 5%, Harold should use an F1F1F1S1F1F1F10 = 0.05. This means that the significance level (alpha) of the test should be set to 0.05, which is the maximum probability of rejecting the null hypothesis when it is actually true.

Harold Wants to Limit the Probability of Making a Type α\alphaα

Harold Wants to Limit the Probability of Making a Type $\alpha$