Homework Answers
The statistical software output for this problem is :
(a)
n = 361
(b)
n = 542
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A physical therapist wants to determine the difference in the proportion of men and women who...
A physical therapist wants to determine the difference in the proportion of men and women who...
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 19.7% female from a previous year? (b) he does not use any prior estimates? (a) n= (Round up to the nearest whole number.) (b) n= (Round up...
A physical therapist wants to determine the difference in the proportion of men and women who...
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 two percentage points with 90% confidence, assuming that (a) he uses the estimates of 21.5% male and 18.1% female from a previous year? (b) he does not use any prior estimates? (a) na (Round up to the nearest whole number.) (b) n= (Round up...
A physical therapist wants to determine the difference in the proportion of men and women who...
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 99% confidence, assuming that (a) he uses the estimates of 21.1% male and 19.8% female from a previous year? (b) he does not use any prior estimates? (a) na (Round up to the nearest whole number.) (b) = n=(Round up...
A physical therapist wants to determine the difference in the proportion of men and women who...
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 she wishes the estimate to be within four percentage points with 99% confidence, assuming that (a) she uses the estimates of 22.1% male and 18.9% female from a previous year? (b) she 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...
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 21.321.3% male and 18.318.3% female from a previous year? (b) hehe does not use any prior estimates? (a) nequals= nothing (Round up to the nearest whole number.) (b) nequals= nothing...
8. A physical therapist wants to determine the difference in the proportion of men and women...
8. 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 she wishes the estimate to be within four percentage points with 90% confidence, assuming that (a) she uses the estimates of 22.4% male and 18.5% female from a previous year? (b) she does not use any prior estimates? (a) n= (Round up to the nearest whole number.) (b) n= (Round...
A physical therapist wants to determine the difference in the proportion of men and women who...
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 two percentage points with 95% confidence, assuming that (a) he uses the estimates of 22.8% male and 18.8% female from a previous year? (b) he does not use any prior estimates?
11.1.40 A physical therapist wants to determine the difference in the proportion of men and women...
11.1.40 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 she wishes the estimate to be within five percentage points with 99% confidence, assuming that (a) she uses the estimates of 22.6% male and 19.2% female from a previous year? (b) she does not use any prior estimates?
A physical therapist wants to determine the difference in the proportion of men and women who...
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 she wishes the estimate to be within three percentage points with 90% confidence, assuming that (a) she uses the estimates of 22,8% male and 18.6% female from a previous year? (b) she does not use any prior estimates? (Round up to the nearest whole number.) () = (Round up to the...
A physical therapist wants to determine the difference in the proportion of men and women
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 she wishes the estimate to be within five percentage points with 99% confidence, assuming that (a) she uses the estimates of 22.3% male and 18.9% female from a previous year? (b) she does not use any prior estimates? (a) 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 five percentage points with 95% confidence, assuming that (a) he uses the estimates of 21.2% male and 19.7% female from a previous year? (b) he does not use any prior estimates? (a) n= (Round up to the nearest whole number.) (b) n= (Round up...
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 two percentage points with 90% confidence, assuming that (a) he uses the estimates of 21.5% male and 18.1% female from a previous year? (b) he does not use any prior estimates? (a) na (Round up to the nearest whole number.) (b) n= (Round up...
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 99% confidence, assuming that (a) he uses the estimates of 21.1% male and 19.8% female from a previous year? (b) he does not use any prior estimates? (a) na (Round up to the nearest whole number.) (b) = n=(Round up...
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 she wishes the estimate to be within four percentage points with 99% confidence, assuming that (a) she uses the estimates of 22.1% male and 18.9% female from a previous year? (b) she does not use any prior estimates? (a) n= (Round up to the nearest whole number.)
8. 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 she wishes the estimate to be within four percentage points with 90% confidence, assuming that (a) she uses the estimates of 22.4% male and 18.5% female from a previous year? (b) she does not use any prior estimates? (a) n= (Round up to the nearest whole number.) (b) n= (Round...
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 she wishes the estimate to be within three percentage points with 90% confidence, assuming that (a) she uses the estimates of 22,8% male and 18.6% female from a previous year? (b) she does not use any prior estimates? (Round up to the nearest whole number.) () = (Round up to the...
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