Construct the indicated confidence interval for the difference between population proportions P P2 Assume that the samples are independent and that they have been randomly selected In a random sample of 500 people aged 20 24 22 were smokers In a random sample of 450 people aged 25 29 14 were smokers Construct a 95 confidence interval for the difference between the population proportions p P 0 035 P1 P2 0 125 O 0 048 P1 P2 0 112