A 95% confidence interval means that there is a 95% probability that the interval will include the true population mean.

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Quizplus · Accepted Answer

A confidence interval is not a probability statement. It means that if we had repeated samples and calculated a 95% confidence interval for each sample, 95% of those intervals would contain the true population mean. But for a single interval, we cannot say with probability that it includes the true mean, it is either in the interval or it is not.

A 95% Confidence Interval Means That There Is a 95