Which of the following is a characteristic of confidence intervals?
A) The less certain an estimate, the more precise the estimate.
B) The more certain an estimate, the less precise the estimate.
C) The less certain an estimate, the more precise the estimate, and the more certain an estimate, the less precise the estimate.

Question

Quizplus · Accepted Answer

Confidence intervals are used to estimate a population parameter. As the level of confidence increases, the precision of the estimate decreases because a wider range of values is considered. When the level of confidence decreases, the precision of the estimate increases because a narrower range of values is considered. Therefore, the less certain the estimate (lower confidence level), the more precise it is, and the more certain the estimate (higher confidence level), the less precise it is.

Which of the Following Is a Characteristic of Confidence Intervals