Samantha reports that 60 percent of the first year students at her university think they should be able to bring a car to campus.She also notes that she is 95 percent certain that between 50 and 70 percent of the first year students agree.Which of the following statements is FALSE?
A)The range from 50 to 70 percent is a confidence interval.
B)95 percent refers to her confidence level.
C)60 percent is a statistic.
D)She could be 99 percent certain that between 55 and 65 percent of the first year students agree.
E)All of these choices are TRUE.

Question

Quizplus · Accepted Answer

Samantha's statement implies that she is using a confidence interval to estimate the proportion of first-year students who think they should be able to bring a car to campus. In option D, she could be 99 percent certain that the true proportion falls within the interval of 55 to 65 percent. This statement is true because increasing the confidence level to 99 percent widens the range of plausible values.

Samantha Reports That 60 Percent of the First Year Students