Age Group Under 25 25-45 Over 45 Total Number of accidents in 74 90 84 248 19 12 39 past 3 years > 1 4 13 Total 100 100 100 300

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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1. A car insurance company performed a study to determine whether an association exists between age and the frequency of car accidents.  They obtained the following sample data.

- Image Attached 

At the 10% significance level, do the data provide sufficient evidence to conclude that age and frequency of car accidents are independent?

Step 1 - State the Hypothesis 

Step 2 - Decide on alpha 

Step 3 - Calculate the Test Statistic 

Step 4 - Find the Critical Value

Step 5 - Conclusion 

 

Age Group
Under 25
25-45
Over 45
Total
Number of
accidents in
74
90
84
248
19
12
39
past 3 years > 1
4
13
Total
100
100
100
300
Transcribed Image Text:Age Group Under 25 25-45 Over 45 Total Number of accidents in 74 90 84 248 19 12 39 past 3 years > 1 4 13 Total 100 100 100 300
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