An alpha of 0.01 means that a decision to ____ the null hypothesis has a ____ in 100 chance of being incorrect
A)accept,1
B)fail to reject,1
C)reject,1
D)reject,100

Question

Quizplus · Accepted Answer

An alpha of 0.01 means that we are willing to accept a maximum of 1% chance of making a Type I error, i.e., incorrectly rejecting the null hypothesis when it is actually true. Therefore, a decision to reject the null hypothesis has a 1 in 100 chance of being incorrect. If we fail to reject the null hypothesis, there is no risk of a Type I error. Therefore, option A and B are incorrect. The option D is also incorrect as it suggests that rejecting the null hypothesis has a 100 in 100 chance of being incorrect, which is not true.

An Alpha of 0