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How do you test the data for car accidents while using a cell phone?

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The Iowa Department of Transportation is concerned with the use of cellphones while driving. It commissioned a survey of drivers to see what relationship there might be between use of cellphones and accidents. The survey yielded the following data:
Had an accident Did not have accident
in the last year in the last year

Uses cell phone while driving 25 300

Does not use cell phone 50 400
while driving

What do you conclude from this data (use the ,05 significance level)?

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This solution shows a step by step method for computing the test statistic for a Chi-Square test in an attached Word document.

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The Iowa Department of Transportation is concerned with the use of cell phones while driving. It commissioned a survey of drivers to see what relationship there might be between use of cell phones and accidents. The survey yielded the following data

Had an accident Did not have accident
in the last year in the last year

Uses cell ...

Purchase this Solution
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