All other things being equal, a confidence interval based on a larger sample will be ________ a confidence interval based on a smaller sample.
A) wider than
B) narrower than
C) the same width as
D) worse than

Question

Quizplus · Accepted Answer

A larger sample size reduces the standard error, leading to a narrower confidence interval. This is because a larger sample provides a more precise estimate of the population parameter.

All Other Things Being Equal, a Confidence Interval Based on a Larger