Now answered: Testing Hypotheses. In Exercises 924, assume that a simple random sample
Chapter 8, Problem 17(choose chapter or problem)
Testing Hypotheses. In Exercises 924, assume that a simple random sample has been selected and test the given claim. Unless specified by your instructor, use either the Pvalue method or the critical value method for testing hypotheses. Identify the null and alternative hypotheses, test statistic, Pvalue (or range of Pvalues), critical value(s), and state the final conclusion that addresses the original claim.Garlic for Reducing Cholesterol In a test of the effectiveness of garlic for lowering cholesterol, 49 subjects were treated with raw garlic.Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have amean of 0.4 and a standard deviation of 21.0 (based on data from Effect of Raw Garlic vs Commercial Garlic Supplements on Plasma LipidConcentrations in Adults with Moderate Hypercholesterolemia, by Gardner et al., Archives of Internal Medicine, Vol. 167). Test the claim that withgarlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment?
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