The level of significance ($\alpha$) is _____.
A) always equal to 0.05
B) always equal to 0.01
C) the probability of making an error by rejecting the null hypothesis when it is actually true
D) the probability of making an error by accepting the null hypothesis when it is actually false
E) the ability to reject the null hypothesis when in fact the null hypothesis is false

Question

Quizplus · Accepted Answer

The level of significance is the probability of making an error by rejecting the null hypothesis when it is actually true, also known as a Type I error. It is not always equal to 0.05 or 0.01, and it is not a measure of the ability to reject the null hypothesis or the probability of making a Type II error.

The Level of Significance α\alphaα ) Is _____

The Level of Significance $\alpha$ ) Is _____