A 95% confidence interval estimate for a population mean µ is determined to be 75 to 85. If the confidence level is reduced to 80%, the confidence interval for µ becomes narrower.

Name: A 95% confidence interval estimate for a population mean µ is determined to be 75 to 85. If the confidence level is reduced to 80%, the confidence interval for µ becomes narrower.
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Question

Quizplus · Accepted Answer

When the confidence level decreases, the margin of error decreases, and the interval becomes narrower. Therefore, the statement is true.

A 95% Confidence Interval Estimate for a Population Mean µ