Mathematics, 17.12.2019 19:31 gabestrickland2
Aphysical 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 90% confidence, assuming that (a) he uses the estimates of 22.5% male and 18.1% female from a previous year? (b) he does not use any prior estimates? (a) n= up to the nearest whole number)(b) n= up to the nearest whole number)
Answers: 3
Mathematics, 21.06.2019 15:30
The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease
Answers: 3
Mathematics, 21.06.2019 17:00
Evaluate the expression for the given value of the variable 7a - 4a for a =8
Answers: 2
Mathematics, 21.06.2019 21:00
Deepak plotted these points on the number line. point a: –0.3 point b: – 3 4 point c: – 11 4 point d: –0.7 which point did he plot incorrectly?
Answers: 2
Aphysical therapist wants to determine the difference in the proportion of men and women who partici...
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