Question

5. The following table shows fatality results for drivers and passengers in auto accidents in Florida in 2008, according to if the person was wearing a seat belt or not Fatal Injury Non-Fatal Injur No Seat Belt Seat Belt 1085 703 55623 441239 (a) Estimate the difference in proportions of fatal acci- (b) Calculate the 95% wilson confidence interval for the (c) Interpret the confidence interval in terms of the prob- (d) Which group is more likely to have a fatal accident dents for seat belt and non-seat belt wearers. estimate in (a) lem. (if any), and by approximately how much at least?

Answer 1