A 99% confidence interval estimate can be interpreted to mean that
A) if all possible samples are taken and confidence interval estimates are developed, 99% of them would include the true population mean somewhere within their interval.
B) we have 99% confidence that we have selected a sample whose interval does include the population mean.
C) Both of the above.
D) None of the above.

Question

Quizplus · Accepted Answer

A 99% confidence interval means that if we were to take many samples and build a confidence interval from each, 99% of those intervals would contain the true population mean. It also means we are 99% confident that the interval calculated from our sample contains the true population mean.

A 99% Confidence Interval Estimate Can Be Interpreted to Mean