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Random Sample - Test Claim

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A random sample of 160 car crashes are selected and categorized by age. The are listed below. The age distribution of for the given categories is 18% for under 26, 39% for 26-45, 31% for 46-65, and 12% for over 65. Test the claim that all ages have crash rates proportional to their driving rates (use alpha = .05).

Age Under 26 26-45 45-65 over 65
Drivers 66 39 25 30

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Solution Summary

The solution tests the claim that all ages crash rates proportional to their driving rates.

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