Asked by Zechariah
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 four percentage points with 99
% confidence, assuming that
(a) he
uses the estimates of 22.8% male and 19.9 % female from a previous year?
(b) he does not use any prior estimates?
% confidence, assuming that
(a) he
uses the estimates of 22.8% male and 19.9 % female from a previous year?
(b) he does not use any prior estimates?
Answers
Answered by
lklk
1250
Answered by
Ashley
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 hehe wishes the estimate to be within fourfour percentage points with 9595% confidence, assuming that
(a) hehe uses the estimates of 21.821.8% male and 18.518.5% female from a previous year?
(b) hehe does not use any prior estimates?
(a) hehe uses the estimates of 21.821.8% male and 18.518.5% female from a previous year?
(b) hehe does not use any prior estimates?
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