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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 five percentage points with 95% confidence, assuming that (a) he uses the estimates of 21.2% male and 19.6% female from a previous year? (b) he does not use any prior estimates? (a) n= (Round up to the nearest whole number.)

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 five percentage points with 95% confidence, assuming that (a) he uses the estimates of 21.2% male and 19.6% female from a previous year? (b) he does not use any prior estimates? (a) n= (Round up to the nearest whole number.)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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 five percentage points with 95% confidence, assuming that (a) he uses the estimates of 21.2% male and 19.6% female from a previous year? (b) he does not use any prior estimates? (a) n= (Round up to the nearest whole number.) (1,1) More Help me solve this Statcrunch Get more help - Clear all Check answer Hence. me P Type here to search 57°F Mostly sunny DELL Esc F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 PrtScr Insert Delete # $ * Backsp 1 2 3 4 5 7 8 Tab Q W E R Y U < O
Transcribed Image Text: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 five percentage points with 95% confidence, assuming that (a) he uses the estimates of 21.2% male and 19.6% female from a previous year? (b) he does not use any prior estimates? (a) n= (Round up to the nearest whole number.) (1,1) More Help me solve this Statcrunch Get more help - Clear all Check answer Hence. me P Type here to search 57°F Mostly sunny DELL Esc F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 PrtScr Insert Delete # $ * Backsp 1 2 3 4 5 7 8 Tab Q W E R Y U < O
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