In a t test, when the size of the sample is increased, the confidence interval _________.
A) increases
B) decreases
C) stays the same
D) changes shape

Question

Quizplus · Accepted Answer

When the size of the sample is increased, the confidence interval decreases because a larger sample size provides more information about the population, leading to a more precise estimate of the mean, thus narrowing the confidence interval.

In a T Test, When the Size of the Sample