Consider a significance test for a null hypothesis versus a two-sided alternative with a z-test statistic.Give a value of z that will give a result significant at the 1% level but not at the 5% level.
A) z = 1.96
B) z = -2.57
C) z = 3.98
D) There is no such z-value.

Question

Quizplus · Accepted Answer

A z-value that is significant at the 1% level must be greater than approximately ±2.576 or less than -2.576, and any such value would also be significant at the 5% level. Therefore, there is no z-value that is significant at the 1% level but not at the 5% level.

Consider a Significance Test for a Null Hypothesis Versus a Two-Sided