For a given confidence level 100(1 - α)% and sample size n, the width of the confidence interval for the population mean is narrower, the greater the population standard deviation σ.

Question

Quizplus · Accepted Answer

The width of the confidence interval for the population mean is wider, not narrower, as the population standard deviation σ increases, given that the confidence level and sample size remain constant.

For a Given Confidence Level 100(1 - α)% and Sample