Answer
a. 463
b. 0.866 < p < 0.934
c. 0.883 < p < 0.917
d. The 95% confidence interval is
wider than the 80% confidence
interval. A confidence interval
must be wider in order to be more
confident that it captures the true
value of the population proportion.
Work Step by Step
a. 463
b. 0.866 < p < 0.934
c. 0.883 < p < 0.917
d. The 95% confidence interval is
wider than the 80% confidence
interval. A confidence interval
must be wider in order to be more
confident that it captures the true
value of the population proportion.