a study designed to investigate drinking problems among college students. In 1983 a group of students were asked if they ever drove while intoxicated. In 1987, after the legal age of drinking was raised, a different group of students were asked the same question. The results were as follows: Year Drove While Intoxicated19831987TotalYes12509912241No138716663053Total263726575294If the answer to the question and the year that the question was asked are independent, then what is the expected number of students from 1983 who answer “no”?What is the sample odds ratio for answering “no” compared to “yes” in 1983 versus answering “no” compared to “yes” in 1987?

Introduction: It is required to find the odds ratio and interpret it, and to identify the type of…

Answered: a study designed to investigate…

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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a study designed to investigate drinking problems among college students. In 1983 a group of students were asked if they ever drove while intoxicated. In 1987, after the legal age of drinking was raised, a different group of students were asked the same question. The results were as follows:

	Year
Drove While Intoxicated	1983	1987	Total
Yes	1250	991	2241
No	1387	1666	3053
Total	2637	2657	5294

If the answer to the question and the year that the question was asked are independent, then what is the expected number of students from 1983 who answer “no”?

What is the sample odds ratio for answering “no” compared to “yes” in 1983 versus answering “no” compared to “yes” in 1987?

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