Suppose a Test Procedure About the Population Mean $\mu$ Is Performed, When the Population Is Normal and the Sample

question 61

Essay

Suppose a test procedure about the population mean $\mu$ is performed, when the population is normal and the sample size n is small, then if the alternative hypothesis is $H _ { \pm } : \mu < \mu _ { o }$ the rejection region for a level $\alpha$ test is __________.

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