In a Two-Tailed Test for the Population Mean, the Null

question 110

Multiple Choice

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

• A) | z | > z_a
• B) | z | < - z_a/2
• C) -z_a< z < z_a
• D) | z | > z_a/2
• E) | z | < z_a