Answered: (a) Find the test statistic. (Give your…

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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Results on seat belt usage from the 2003 Youth Risk Behavior Survey were published in a USA Snapshot on January 13, 2005. The following table outlines the results from the high school students who were surveyed in the state of Nebraska. They were asked whether or not they rarely or never wear seat belts when riding in someone else's car. Using ? = .05, does this sample present sufficient evidence to reject the hypothesis that gender is independent of seat belt usage?

	Female	Male
Rarely or never use seat belt	210	311
Uses seat belt	1207	1191

(a) Find the test statistic. (Give your answer correct to two decimal places.)

(ii) Find the p-value. (Give your answer bounds exactly.)
< p <
(b) State the appropriate conclusion.

Reject the null hypothesis, there is significant evidence that gender is dependent to seat belt use.Fail to reject the null hypothesis, there is not significant evidence that gender is dependent to seat belt use. Reject the null hypothesis, there is not significant evidence that gender is dependent to seat belt use.Fail to reject the null hypothesis, there is significant evidence that gender is dependent to seat belt use.

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