Give your answers as decimals to 3 places.

Question

Out of 500 people sampled, 185 had kids.

The best point estimate for p is .

The margin of error for a 95% confidence interval is 

Answer 1

point estimate (phat) is 185/500 = 0.37

margin of error = critical z value * sqrt(phat* (1-phat)/sample size) =

1.96 * sqrt(0.37*0.63/500) = 0.042