The smaller the level of confidence used in constructing a confidence interval estimate of the population mean, the:
A)more likely that the confidence interval will contain the population mean.
B)wider the confidence interval.
C)narrower the confidence interval.
D)larger the sample required to estimate the population mean to within a certain error bound.

Question

Quizplus · Accepted Answer

A smaller level of confidence results in a narrower confidence interval because less certainty (confidence) requires less range to capture the population mean.

The Smaller the Level of Confidence Used in Constructing a Confidence