In a test of the effectiveness of garlic for lowering cholesterol, 47 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes in their levels of LDL cholesterol (in mg/dL) have a mean of 3.8 and a standard deviation of 17.4. Complete parts (a) and (b) below.
(a) 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.

Question

In a test of the effectiveness of garlic for lowering cholesterol, 47 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes in their levels of LDL cholesterol (in mg/dL) have a mean of 3.8 and a standard deviation of 17.4. Complete parts (a) and (b) below.
(a) 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.

amistre64 · Answer

any thoughts?

amistre64 · Answer

the best point estimator for a population mean is the _______ mean.