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

question 100

Multiple Choice

In a two-tail test for the population mean, the null hypothesis will be rejected at the $\alpha$ level of significance if the value of the standardised 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 .

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