The probability of rejecting null always increases when the
A) Type 1 error is decreased
B) sample size is decreased
C) sample size is increased
D) power of the test is reduced

Question

Quizplus · Accepted Answer

Increasing the sample size generally leads to greater statistical power, which in turn decreases the chances of a Type 2 error and increases the probability of rejecting the null hypothesis. Option A is incorrect because decreasing the Type 1 error rate would decrease the probability of rejecting the null hypothesis. Option B is incorrect because decreasing the sample size usually results in less statistical power and a higher chance of errors. Option D is incorrect because reducing the power of the test would result in a higher probability of a Type 2 error, which would decrease the probability of rejecting the null hypothesis.

The Probability of Rejecting Null Always Increases When the