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A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2500 occupants...

  1. A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2500 occupants not wearing seat belts, 15 were killed. Among 7500occupants wearing seat belts, 15 were killed. Use this data with 0.05 significance level to test the claim that the fatality rate is higher for those not wearing seat belts. (Write all necessary steps like Hypotheses, Test Statistic, P-value & Conclusion)
    Given that.
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  A simple random sample of front-seat occupants involved in car crashe is obtained. Among 2500 occupants not wearing seat belts, 15 were killed. Among 7500 occupants wearing seat belts, 15 were killed. Use this data  with 0.05 significance level to test the claim that the fatality rate is higher for  those not wearing seat belts.

  

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