What effect would increasing the sample size have on the confidence intervals of the group?
A) Confidence intervals would decrease in size.
B) Confidence intervals would increase in size.
C) Confidence intervals are unaffected by sample size.
D) Confidence intervals could either increase or decrease in size.

Question

Quizplus · Accepted Answer

Increasing the sample size generally leads to a decrease in the width of confidence intervals, making them more precise, because the standard error decreases with larger sample sizes.

What Effect Would Increasing the Sample Size Have on the Confidence