ijll'l over-me-counter mean and me prescrtpnon oiug Llpllt' are renown to lower blood cholesterol levels. In one double-blind study Lipitor outperformed niacin. The 95% confidence interval estimate of the difference in mean cholesterol level lowering was [183 41). Which of the following is a reasonable conclusion? Niacin lowers cholesterol an average of 18 points, while Lipitor lowers cholesterol an average of :11 points. There is a 0.95 probability that Lipitor will outperform niacin in lowering the cholesterol level of any given individual. There is a I195 probability that Lipitor will outperform niacin by at least 23 points in lowering the cholesterol level of any given individual. We should be 95% condent that Lipitor will outperform niacin as a cholesterol lowering clrug. None of the above