Question

Out of 120 people sampled, 84 had kids. Based on this, construct a 99% confidence interval for the true population proportion of people with kids.

Answer 1

Given that,

Favorable Cases X= 84,

Sample Size N = 120.

The sample proportion is calculated as follows, based on the sample size N = 120 and the number of favorable cases X = 84.

By using above values we can construct 99% confidence interval for true population proportion as follows,

99% confidence interval for true population proportion is (0.592, 0.808)