For a sample size of 20, a 95 percent confidence interval using the t distribution would be wider than one constructed using the z distribution.

Question

Quizplus · Accepted Answer

This is because the t distribution has fatter tails than the z distribution, which accounts for the increased variability in smaller sample sizes. As sample size increases, the t distribution converges to the z distribution, and the confidence intervals become narrower.

For a Sample Size of 20, a 95 Percent Confidence