Suppose that you are conducting a two tailed test about a proportion at the 0.01 level of significance.The correct critical value(s) to be used in drawing a conclusion is (are)
A) $ \pm 1.96 $
B) $ \pm 2.575 $
C) $ -1.645 $
D) $ \pm 1.645 $
E) $ 1.96 $

Question

Suppose that you are conducting a two tailed test about a proportion at the 0.01 level of significance.The correct critical value(s) to be used in drawing a conclusion is (are) 
A) $ \pm 1.96 $
B) $ \pm 2.575 $
C) $ -1.645 $
D) $ \pm 1.645 $
E) $ 1.96 $

Quizplus · Accepted Answer

For a two-tailed test at the 0.01 level of significance, the critical z-values are $ \pm 2.575 $.

Suppose That You Are Conducting a Two Tailed Test About ±1.96 \pm 1.96 ±1.96

Suppose That You Are Conducting a Two Tailed Test About $\pm 1.96$