In the construction of confidence intervals,if all other quantities are unchanged,an increase in the sample size will lead to a _________ interval.
A)less significant
B)narrower
C)biased
D)wider

Question

Quizplus · Accepted Answer

An increase in sample size will lead to a narrower confidence interval. This is because, as the sample size increases, the standard error of the estimate decreases and the estimate becomes more precise, leading to a narrower interval around the mean or proportion being estimated.

In the Construction of Confidence Intervals,if All Other Quantities Are