In a test of the effectiveness of garlic for lowering? cholesterol, 43 subjects were treated with...

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In a test of the effectiveness of garlic for lowering?cholesterol, 43 subjects were treated with garlic in a processedtablet form. Cholesterol levels were measured before and after thetreatment. The changes in their levels of LDL cholesterol? (inmg/dL) have a mean of 2.7 and a standard deviation of 16.3.Complete parts? (a) and? (b) below.
A. What is the best point estimate of the populationmean net change in LDL cholesterol after the garlic?treatment?
B. Construct a 90?% confidence interval estimate of themean net change in LDL cholesterol after the garlic treatment. Whatdoes the confidence interval suggest about the effectiveness ofgarlic in reducing LDL? cholesterol? What is the confidenceinterval estimate of the population mean mu???
C. What does the confidence interval suggest about theeffectiveness of the? treatment? Do they contain 0? Did it affectthe cholesterol levels?

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PART A given that best point estimate sample mean x 27 PART B standard deviation s 163 sample size n 43 i stanadard error sd sqrtn where sd standard deviation n sample size standard error 163 sqrt 43 2486 ii margin of See Answer

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