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, 34 were killed. Among 7730 occupants wearing seatbelts, 19 were killed. Use a 0.05 significance level to test the claim that seat belts are effective in reducing fatalities. Complete parts(b) through(c) below.

b. Test the claim by constructing an appropriate confidence interval.

C. What do the results suggest about effectiveness of seat belts

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