history of cardiovascular disease is? 125 with a standard devistion of 1.5. We wish to design a study to evaluate an experimental medication for reducing boold pressure. How many subjects would be required to detect a 10-unit reduction in systolic blood pressure with 80percent power? Assume that a 2-sided test will be run at 5 percent significance level.
A study reports that the mean systolic blood pressure for patients with a
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