When using a rejection level of .05, the rejection regions for a two-tailed research hypothesis lie beyond z = or + or-
A) 1.65
B) 1.96
C) 2.58
D) 3.00

Question

Quizplus · Accepted Answer

A rejection level of .05 means that the alpha level is .025 on each tail. Using a standard normal distribution table, the critical values for a two-tailed test at an alpha level of .025 are ±1.96. Therefore, the rejection regions lie beyond z = +1.96 and z = -1.96.

When Using a Rejection Level of