Question: Injuries and Motorcycle Helmet Color An example in this section involved data from a case-control study involving injuries and the color of helmets of motorcycle

Injuries and Motorcycle Helmet Color An example in this section involved data from a case-control study involving injuries and the color of helmets of motorcycle riders.

Use the additional data included in the table below and test the claim that injuries are independent of helmet color. Do these data lead to the same conclusion reached with the data in the example of this section?

Number of Cigarettes Smoked per Day 0 1–14 15–34 35 and over Wear seat belts 175 20 42 6 Don’t wear seat belts 149 17 41 9 Based on data from “What Kinds of People Do Not Use Seat Belts?” by Helsing and Comstock, American Journal of Public Health, Vol. 67, No. 11.

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