A study of seat belt users and nonusers yielded the randomly selected sample data summarized in the given table. Test the claim that the amount of smoking is independent of seat belt use. A plausible theory is that people who smoke more are less concerned about their health and safety and are therefore less inclined to wear seat belts. Is this theory supported by the sample data? Test the given claim.

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Number of Cigarettes Smoked per Day 1-14 5 3435 and over 20 17 Wear Seat Belts 175 42 Don't Wear Seat Belts 149 41 9