If we set alpha at 0.05 instead of 0.01 _________.
A) we have a greater risk of a Type I error
B) we have a greater risk of a Type II error
C) we have a lesser risk of a Type II error
D) we have a greater risk of a Type I error and we have a lesser risk of a Type II error

Question

Quizplus · Accepted Answer

Setting alpha at 0.05 instead of 0.01 increases the risk of a Type I error (rejecting a true null hypothesis) because we are more willing to accept evidence against the null hypothesis. Conversely, it decreases the risk of a Type II error (failing to reject a false null hypothesis) because we are more likely to detect an effect if one truly exists.

If We Set Alpha at 0