In establishing a confidence interval for the difference between two means, selecting a confidence level of .95 rather than a confidence level of .90 implies that
A) we can be less sure that the interval contains the true difference
B) the interval will be wider
C) the difference between the two sample means will be less
D) the difference between the two population means will be greater

Question

Quizplus · Accepted Answer

A higher confidence level results in a wider interval, as it requires more range to ensure the true parameter is captured with greater certainty.

In Establishing a Confidence Interval for the Difference Between Two