A sample of n = 168 students was asked, "Do you believe in love at first sight?" The choices below show confidence intervals, in scrambled order, for 90%, 95%, 98%, and 99% confidence levels for the population proportion who would answer yes. Which choice gives the 99% confidence interval?
A) 0.56 to 0.68
B) 0.52 to 0.72
C) 0.53 to 0.71
D) 0.55 to 0.69

Question

Quizplus · Accepted Answer

The 99% confidence interval is the widest interval because it reflects the highest level of confidence, meaning it accounts for the greatest amount of uncertainty. Among the given options, choice B (0.52 to 0.72) is the widest interval, indicating it is the 99% confidence interval.

A Sample of N = 168 Students Was Asked, "Do