Which is true about a 99% confidence interval based on a given sample?
I. The interval contains 99% of the population.
II. Results from 99% of all samples will lie in this interval.
III. The interval is wider than a 95% confidence interval would be.
A) II only
B) I only
C) II and III only
D) none of these
E) III only

Question

Quizplus · Accepted Answer

A 99% confidence interval is wider than a 95% confidence interval because it reflects greater uncertainty and aims to capture the true population parameter with higher confidence.

Which Is True About a 99% Confidence Interval Based on a Given