Which statement best describes the significance level of a hypothesis test?
A)The probability of failing to reject the null hypothesis when the null hypothesis is not true.
B)The probability of rejecting the null hypothesis when the null hypothesis is true.
C)The probability of rejecting the null hypothesis when the null hypothesis is not true.
D)None of these

Question

Quizplus · Accepted Answer

The significance level of a hypothesis test, often denoted by alpha (α), is the probability of rejecting the null hypothesis when it is actually true, which is also known as the Type I error rate.

Which Statement Best Describes the Significance Level of a Hypothesis