In a Two-Tail Test for the Population Mean,the Null Hypothesis $\alpha$

Multiple Choice

In a two-tail test for the population mean,the null hypothesis will be rejected at $\alpha$ level of significance if the value of the standardized test statistic z is such that:

A) z > z _$\alpha$
B) z < -z _$\alpha$
C) -z _$\alpha$ < z < z _$\alpha$
D) | z | > z _{$\alpha$ / 2}