A confidence interval was used to estimate the proportion of statistics students who are female. A random sample of 72 statistics students generated the following confidence interval: (.438, .642).
Using the information above, what sample size would be necessary if we wanted to estimate the true proportion to within 3% using 99% reliability?
A) 1769
B) 1842
C) 1916
D) 1831

Question

Quizplus · Accepted Answer

The Answer of A confidence interval was used to estimate the proportion of statistics students who are female. A random sample of 72 statistics students generated the following confidence interval: (.438, .642).
Using the information above, what sample size would be necessary if we wanted to estimate the true proportion to within 3% using 99% reliability?
A) 1769
B) 1842
C) 1916
D) 1831

A Confidence Interval Was Used to Estimate the Proportion of Statistics