Exercise

Understanding confidence intervals

textbooks is available in your workspace. Experiment with t-tests on diff at different confidence levels and on different size subsets of the data.

Which of the following is false about confidence intervals when all else is held constant?

Instructions

50 XP

Possible Answers

As the confidence level increases, the margin of error of the interval increases as well.
As the confidence level increases, the width of the interval increases as well.
As the sample size increases, the margin of error of the interval increases as well.
As the sample size increases, the precision of the interval increases as well.