Suppose you want to test the claim that mu is not equal to 3.5. Given a sample s

Question

Suppose you want to test the claim that mu is not equal to 3.5. Given a sample size of n = 31 and a level of significance of alpha = 0.10 when should you reject Ho? (Points : 4)
Reject Ho if the standardized test statistic is greater than 2.575 or less than - 2.575.
Reject Ho if the standardized test statistic is greater than 1.96 or less than -1.96
Reject Ho if the standardized test statistic is greater than 2.33 or less than -2.33
Reject Ho if the standardized test statistic is greater than 1.645 or less than -1.645.

Explanation / Answer

Given a=0.1, the critical value is Z(0.05)=1.645 (check standard normal table) So answer: Reject Ho if the standardized test statistic is greater than 1.645 or less than -1.645.

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