Sample size and the width of confidence intervals________.
A) increase at the same rate.
B) increase at different rates: sample size increases faster than interval width.
C) increase at different rates: sample size increases more slowly than interval width.
D) have no relationship to each other.

Question

Quizplus · Accepted Answer

As the sample size increases, the variability of the sample mean decreases, leading to a narrower confidence interval. Therefore, sample size and confidence interval width increase at different rates, with increased sample size resulting in faster reduction in interval width.

Sample Size and the Width of Confidence Intervals________