If the probability of committing a Type I error for a given test is to be decreased, then for a fixed sample size n, what will happen?
A) The power of the test will increase.
B) The probability of committing a Type II error will increase.
C) The probability of committing a Type II error will decrease.
D) A two-tailed test must be used.

Question

Quizplus · Accepted Answer

Decreasing the probability of a Type I error (alpha) typically increases the probability of a Type II error (beta) if the sample size remains fixed, as there is a trade-off between these two types of errors.

If the Probability of Committing a Type I Error for a Given