When the sample size is the same and variability is the same, a 99 percent confidence interval will be narrower than a 95 percent confidence interval.

Question

Quizplus · Accepted Answer

A 99 percent confidence interval is wider than a 95 percent confidence interval because it reflects a higher degree of certainty, requiring a larger range to capture the true parameter with more confidence.

When the Sample Size Is the Same and Variability Is