Question

Use the following information to compute the confidence interval for the population proportion.

a. n = 715 and x = 329, with 95% confidence
b. n = 284 and p̂ = .71, with 90% confidence
c. n = 1250 and p̂ = .48, with 95% confidence
d. n = 457 and x = 270, with 98% confidence

Appendix A Statistical Tables

(Round your answers to 4 decimal places.)

a.

≤ p ≤

b.

≤ p ≤

c.

≤ p ≤

d.

≤ p ≤

Answer 1