The risk set by the researcher for rejecting a null hypothesis when it is true is called the _______.
A)experimental error
B)error significance
C)significance level
D)error level

Question

Quizplus · Accepted Answer

The risk set by the researcher for rejecting a null hypothesis when it is true is called the significance level, which is typically denoted as alpha (α). It is the probability of making a type I error, which is rejecting a true null hypothesis. The significance level is set by the researcher before conducting the hypothesis test and is usually set at 0.05 or 0.01. The other options (A, B, and D) are not correct terms for this concept.

The Risk Set by the Researcher for Rejecting a Null