Confidence intervals for very large samples are likely to be
A) the same as for smaller samples.
B) smaller than for smaller samples.
C) larger than for smaller samples.
D) less accurate than for smaller samples.

Question

Quizplus · Accepted Answer

Confidence intervals for very large samples tend to be smaller than for smaller samples because the standard error decreases as sample size increases, leading to a more precise estimate of the population parameter.

Confidence Intervals for Very Large Samples Are Likely to Be