What is the best point estimate of the population mean net change in LDL cholesterol after the garlic treatment? The best point estimate is mg/dL (Type an integer or a decimal) b. Construct a 95% confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment. What does the confidence interval suggest about the effectiveness of garlic in reducing LDL cholesterol? What is the confidence interval estimate of the population mean u? mg/dL << mg/dL (Round to two decimal places as needed) What does the confidence interval suggest about the effectiveness of the treatment? OA. The confidence interval limits do not contain 0, suggesting that the garlic treatment did affect the LDL cholesterol levels OB. The confidence interval limits contain 0, suggesting that the garlic treatment did not affect the LDL cholesterol levels OC. The confidence interval limits do not contain 0, suggesting that the garlic treatment did not affect the LDL cholesterol levels OD. The confidence interval limits contain 0, suggesting that the garlic treatment did affect the LDL cholesterol levels