If the number of smokers in a sample of 160 students selected from university A is 56 and the number of smokers in a sample of 60 students selected from university B is 16. Then the 98% confidence interval for the difference between proportions of smokers in the two universities (PB-PA) is closest to a. (-0.0942,-0.0724) b. None of these c. (-0.2240,0.0572) d. (-0.2420,0.0758) e. (-0.0929,-0.0737)
If the number of smokers in a sample of 160 students selected from university A is 56 and the number of smokers in a sample of 60 students selected from university B is 16. Then the 98% confidence interval for the difference between proportions of smokers in the two universities (PB-PA) is closest to a. (-0.0942,-0.0724) b. None of these c. (-0.2240,0.0572) d. (-0.2420,0.0758) e. (-0.0929,-0.0737)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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