Mathematics, 26.11.2019 20:31 korrinevbrulz2222
Conduct the hypothesis test:
a simple random sample of front-seat occupants involved in car crashes is obtained. among 2823 occupants not wearing seat belts, 31 were killed. among 7765 occupants wearing seat belts, 16 were killed. use this data with a 0.05 significance level to test the claim that the fatality rate is higher for those not wearing seat belts.
Answers: 3
Mathematics, 21.06.2019 13:00
Officer brimberry wrote 24 tickets for traffic violations last week, but only 9 tickets this week. what is the percent decrease? give your answer to the nearest tenth of a percent.
Answers: 1
Conduct the hypothesis test:
a simple random sample of front-seat occupants involved in...
a simple random sample of front-seat occupants involved in...
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