Consider the following results for independent samples takenfrom two populations.
| Sample 1 | Sample 2 |
|---|
n1 = 400 | n2 = 300 |
p1 = 0.54 | p2 = 0.38 |
(a) What is the point estimate of the difference between the twopopulation proportions?
(b) Develop a 90% confidence interval for the difference betweenthe two population proportions.
(c) Develop a 95% confidence interval for the difference betweenthe two population proportions.
