Question: Please answer these question and put them in Excel. The following data were collected in a clinical trial to compare a new drug to a

Please answer these question and put them in Excel.

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.

New Drug

()

Placebo

()

Total Sample

()

Mean (SD) Total Serum Cholesterol

185.0 (24.5)

204.3 (21.8)

194.7 (23.2)

% Patients with Total Cholesterol < 200

78.0%

65.0%

71.5%

In Problem 2 of this project, you generated a 95% confidence interval for the difference in mean total cholesterol levels between treatments. Now, using this same data,

Generate a 95% confidence interval for the proportion of all patients with total cholesterol < 200.

How many patients would be required to ensure that a 95% confidence interval has a margin of error not exceeding 5%?

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