A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained if he wishes the estimate to be within three percentage points with 95% confidence, assuming that (a) he uses the estimates of 21.4% male and 18.1% female from a previous year? (b) he does not use any prior estimates? (a) n=___ (b) n=___
A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained if he wishes the estimate to be within three percentage points with 95% confidence, assuming that (a) he uses the estimates of 21.4% male and 18.1% female from a previous year? (b) he does not use any prior estimates? (a) n=___ (b) n=___
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained if he wishes the estimate to be within three
percentage points with 95% confidence, assuming that (a) he uses the estimates of 21.4% male and 18.1% female from a previous year?
percentage points with 95% confidence, assuming that (a) he uses the estimates of 21.4% male and 18.1% female from a previous year?
(b) he does not use any prior estimates?
(a) n=___
(b) n=___
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