Generate a 95% confidence interval for the difference in mean total cholesterol levels between treatments. Upper limit of CI/ Lower limit of CI: (2 points)

The following data were collected in a clinical trial to compare a new drug to a placebo

for its effectiveness in lowering total serum cholesterol. Generate a 95% confidence

interval for the difference in mean total cholesterol levels between treatments.

1. Upper limit of CI: (2 points)

2. Lower limit of CI: (2 points)

3. Based on the confidence interval which of the following is (are) true? (4 points)

a. There is significant evidence, alpha=0.05, to show that there is a difference in Total

Serum Cholesterol between treatments New Drug and Placebo.

b. There is not significant evidence, alpha=0.05, to show that there is a difference in

Total Serum Cholesterol between treatments New Drug and Placebo.

c. The difference between Total Serum Cholesterol between treatments New Drug and

Placebo is essentially 0.

d. b and c.

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