Question: A sample of five measurements, randomly selected from a normally distributed population, resulted in the following summary statistics: x b a r = 4 .

A sample of five measurements, randomly selected from a normally distributed population, resulted in the following summary statistics:xbar=4.8 s=2.3.

a. Test the null hypothesis that the population's mean is six against the alternative hypothesis,<6 . Use=.05.

b. Test the null hypothesis that the population's mean is six against the alternative hypothesis,6 . Use=.05 .

c. Find the observed significance level for each test.

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