The width of a confidence interval will be:
A)Narrower for 99% confidence than 95% confidence.
B)Wider for a sample size of 100 than for a sample size of 50.
C)Narrower for 90% confidence than 95% confidence.
D)Wider when the sample standard deviation (s)is small than when s is large.

Question

Quizplus · Accepted Answer

A narrower confidence interval is associated with a lower confidence level (90% vs. 95%), as it reflects less certainty about the estimate.

The Width of a Confidence Interval Will Be