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A physical therapist wants to determine t...
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SAT, 15.04.2021 22:20 saxondear052
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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 22.3% male and 19.3% female from a previous year?
(b) he does not use any prior estimates?
(a) n= (Round up to the nearest whole number.)
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