Question: A simple random sample offront-seat occupants involved in car crashes is obtained. Among 2924 occupants not wearing seatbelts, 36 were killed. Among 7606 occupants wearing

A simple random sample offront-seat occupants involved in car crashes is obtained. Among 2924 occupants not wearing seatbelts, 36 were killed. Among 7606 occupants wearing seatbelts, 14 were killed. Use a 0.05 significance level to test the claim that seat belts are effective in reducing fatalities.

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