The significance level
A) Is set after a statistical test is conducted
B) Is always set at 0.05
C) Results in a p-value
D) Measures the probability of rejecting a true null hypothesis

Question

Quizplus · Accepted Answer

The significance level, often denoted as alpha (α), is a threshold chosen by the researcher before conducting a statistical test to decide whether to reject the null hypothesis. It measures the probability of making a Type I error, which is rejecting a true null hypothesis.

The Significance Level