The ______ the sample, the less confidence a research has that the sample mean estimates the unknown population mean μ, and the ______ the confidence interval around the sample mean.
A) larger; smaller
B) larger; larger
C) smaller; larger
D) smaller; smaller

Question

Quizplus · Accepted Answer

A smaller sample size means there is less confidence that the sample mean accurately estimates the population mean, leading to a larger confidence interval to account for the increased uncertainty.

The ______ the Sample, the Less Confidence a Research Has