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3) An analysis of automobile accidents was conducted to see whether large automobiles are safer than smaller ones. The data for 100 accidents are as follows: Non-Fatal Fatal Small 10 20 30 Size of automobile Medium 20 10 30 Large 30 10 40 3a) Conduct a chi-square (x²) test to determine whether smaller-sized cares are more likely to be involved in fatal accidents (show work on this page). What conclusion can you draw from this chi- square test? 4) In the hypothesis-testing process, we test the null hypothesis rather than the experimental hypothesis. What is the null hypothesis and why do we try to "reject the null” rather than "accept the experimental" hypothesis? 60 40 100

3) An analysis of automobile accidents was conducted to see whether large automobiles are safer than smaller ones. The data for 100 accidents are as follows: Non-Fatal Fatal Small 10 20 30 Size of automobile Medium 20 10 30 Large 30 10 40 3a) Conduct a chi-square (x²) test to determine whether smaller-sized cares are more likely to be involved in fatal accidents (show work on this page). What conclusion can you draw from this chi- square test? 4) In the hypothesis-testing process, we test the null hypothesis rather than the experimental hypothesis. What is the null hypothesis and why do we try to "reject the null” rather than "accept the experimental" hypothesis? 60 40 100

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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3) An analysis of automobile accidents was conducted to see whether large automobiles are safer than smaller ones. The data for 100 accidents are as follows: Non-Fatal Fatal Small 10 20 30 Size of automobile Medium 20 10 30 Large 30 10 40 3a) Conduct a chi-square (x²) test to determine whether smaller-sized cares are more likely to be involved in fatal accidents (show work on this page). What conclusion can you draw from this chi- square test? 4) In the hypothesis-testing process, we test the null hypothesis rather than the experimental hypothesis. What is the null hypothesis and why do we try to "reject the null" rather than "accept the experimental" hypothesis? 60 40 100
Transcribed Image Text:3) An analysis of automobile accidents was conducted to see whether large automobiles are safer than smaller ones. The data for 100 accidents are as follows: Non-Fatal Fatal Small 10 20 30 Size of automobile Medium 20 10 30 Large 30 10 40 3a) Conduct a chi-square (x²) test to determine whether smaller-sized cares are more likely to be involved in fatal accidents (show work on this page). What conclusion can you draw from this chi- square test? 4) In the hypothesis-testing process, we test the null hypothesis rather than the experimental hypothesis. What is the null hypothesis and why do we try to "reject the null" rather than "accept the experimental" hypothesis? 60 40 100
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