In hypothesis testing, what is the level of significance?
A)The risk of rejecting the null hypothesis when it is true.
B)A value symbolized by the Greek letter α.
C)A value between 0 and 1.
D)It is selected before a decision rule can be formulated.
E)All apply.

Question

Quizplus · Accepted Answer

The level of significance in hypothesis testing is the risk of rejecting the null hypothesis when it is true (A), symbolized by the Greek letter α (B), a value that lies between 0 and 1 (C), and it must be selected before a decision rule can be formulated (D). Therefore, all the given options correctly describe aspects of the level of significance.

In Hypothesis Testing, What Is the Level of Significance