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A sample of 36 observations is selected from a normal population.


A sample of 36 observations is selected from a normal population. The sample mean is 21, and the population standard deviation is 5. Conduct the following test of hypothesis using the .05 significance level.


H0: μ ≤ 20

H1: μ > 20


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classmate Date Page Ho 11 u so a > 20 u=21 n=36 65 À 220 : - t. 1.2 20-21 - - 5/36 Do not regent no at S.l. c. I. -1.96 1.2

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