Question: A simple random sample offront-seat occupants involved in car crashes is obtained. Among 2776 occupants not wearing seatbelts, 34 were killed. Among 7730 occupants wearing

A simple random sample offront-seat occupants involved in car crashes is obtained. Among 2776 occupants not wearing seatbelts, 34were killed. Among 7730occupants wearing seatbelts, 19 were killed. Use a 0.05significance level to test the claim that seat belts are effective in reducing fatalities.

A. construct a confidence Interval

B. What can be conclusion can be drawn

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