1) A simple random sample of front seat occupants involved in car crashes is obtained. Among 3281 occupants not wearing seat belts, 40 were killed. Among 9285 occupants wearing seat belts, 125 were killed. Does the data provide evidence to conclude that seat belts are effective in avoiding fatalities? Perform a hypothesis test at the 1% significarnce level. a) Define the parameters and state null and alternative hypothesis b) Find Test Statistics c) Find the p-value d) conclusion 2) Construct an appropriate confidence interval for the hypothesis test in problem 1. a) Confidence Interval b) Conclusion

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Q: A simple random sample of​ front-seat occupants involved in car crashes is obtained. Among…

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Q: Calculate the z test statistic and p-value for the above hypothesis test Pvakue

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