If the reported confidence interval for a population mean is 95%, then there is a
A) 5% chance that the results are statistically significant.
B) 95% chance that the results are statistically significant.
C) 5% probability that the true mean is in the reported range.
D) 95% probability that the true mean is in the reported range.

Question

Quizplus · Accepted Answer

A 95% confidence interval means that if we were to repeat the sampling process many times, we would expect the true population mean to be contained in the interval in 95% of those cases. Therefore, there is a 95% probability that the true mean is in the reported range.

If the Reported Confidence Interval for a Population Mean Is