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

Question

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}

Quizplus · Accepted Answer

In a two-tail test, the null hypothesis is rejected if the absolute value of the test statistic is greater than the critical value at α/2 level of significance.

In a Two-Tail Test for the Population Mean,the Null Hypothesis α\alphaα

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