Suppose You Are Testing the Null Hypothesis That a Population $\sigma$

question 23

Multiple Choice

Suppose you are testing the null hypothesis that a population mean is less than or equal to 46,against the alternative hypothesis that the population mean is greater than 46.If the sample size is 25, $\sigma$ is known,and alpha = .01,the critical value of z is _______.

• A)1.645
• B)-1.645
• C)1.28
• D)-2.33
• E)2.33

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