All else being equal, decreasing the level of confidence desired will
A) widen the confidence interval.
B) increase the margin of error.
C) increase certainty.
D) decrease the margin of error.
E) Both A and B.

Question

Quizplus · Accepted Answer

Decreasing the level of confidence desired means you are willing to accept a higher risk of your confidence interval not capturing the true population parameter. This results in a narrower confidence interval, which directly translates to a decrease in the margin of error.

All Else Being Equal, Decreasing the Level of Confidence Desired