If a researcher sets alpha at .05,the probability of a Type I error ____.
A)= .05
B)= .10
C)= .95
D)cannot be calculated from alpha

Question

If a researcher sets alpha at .05,the probability of a Type I error ____.
A)= .05
B)= .10
C)=  .95
D)cannot be calculated from alpha

Quizplus · Accepted Answer

Setting alpha at .05 means that there is a 5% probability of rejecting the null hypothesis when it is actually true, which is the definition of a Type I error. Therefore, the probability of a Type I error is equal to alpha, which is .05 in this case.

If a Researcher Sets Alpha at