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 99% confidence interval: (.438, .642). State the level of reliability used to create the confidence interval.
A) between 43.8% and 64.2%
B) 64.2%
C) 99%
D) 72%

Question

Quizplus · Accepted Answer

The level of reliability used to create the confidence interval is the confidence level itself, which is given as 99%.

A Confidence Interval Was Used to Estimate the Proportion of Statistics