A statistics student at Pleasantville High School (PHS) looked at seat belt use by drivers. Customerswere observed driving into a local convenience store. After the drivers left their cars, the studentasked each driver several questions about seat belt use. In all, 80% of the drivers said that theyalways use seat belts. However, the student observed that only 61.5% of these same drivers wereactually wearing a seat belt when they pulled into the store parking lot. Which of the following bestexplains the difference in the two percentages?(A) The difference is due to sampling variability. We shouldn't expect the results of a sample tomatch the truth about the population every time.(B) The difference is due to response bias. Drivers who don't use seat belts are likely to lie and saythey do use seat belts.(C) The difference is due to undercoverage bias. The study included only customers of theconvenience store and did not include all drivers in the population.(D) The difference is due to nonresponse bias. Drivers who don't use seat belts are less likely torespond to the student's questions.(E) The difference is due to voluntary response bias. Drivers are able to volunteer to participate inthis survey.

The difference between the two percentages—80% of drivers claiming to always use seat belts and…

Answered: A statistics student at Pleasantville…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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