Question

a) Consider random samples of size 56 drawn from population A with proportion 0.77 and random samples of size 78 drawn from population B with proportion 0.67 .

Find the standard error of the distribution of differences in sample proportions, p^A-p^B.

Round your answer for the standard error to three decimal places.

standard error = ___________________

b) Consider random samples of size 470 drawn from population A with proportion 0.55 and random samples of size 210 drawn from population B with proportion 0.49 .

Find the standard error of the distribution of differences in sample proportions, p^A-p^B.

Round your answer for the standard error to three decimal places.

standard error = ___________________

Answer 1