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3. A random sample of 17 observations from the population N(u, o') yields the sample mean = = 6.73 and the sample variance s' =

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3. A random sample of 17 observations from the population N(u, o') yields the sample mean = = 6.73 and the sample variance s' = 1.23. At the 1% significance level, test the following hypotheses by obtaining critical values: (a) Ho : / = 6 vs. H1 : [ > 6. (b) Ho : p =6 vs. H1 : p

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