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

Question

Quizplus · Accepted Answer

An increase in sample size generally leads to a narrower confidence interval because it reduces the standard error, making the estimate more precise.

In the Construction of Confidence Intervals, If All Other Quantities