1. Hypothesis Tests: In your work for a national health organization, you are aware that prior studies of the amount of sodium in a certain brand of cereal is 205 milligrams with a standard deviation of 15 milligrams. Based upon your sample of 40 servings you find a mean sodium content of 218 milligrams. You want to test the hypothesis that the mean amount of sodium in this brand of cereal differs from the stated mean of 205 milligrams. For a a = .04 significance level, determine the Critical Value(s) that separate the region of retention from the region(s) of rejection. (Do not test the hypothesis, just find C.V.)

Critical Value(s) =___________

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