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Data Miles 85092 39323 64342 74276 74425 37831 77539 32609 89641 61978 66998 67202 89341 88798 59465 94219 67998 40001 118444 73341 77437 116803
Metropolitan Research, Inc., a consumer research organization, conducts surveys designed to evaluate a wide variety of products and services available to consumers. In one particular study, Metropolitan looked at consumer satisfaction with the performance of automobiles produced by a major Detroit manufacturer. A questionnaire sent to owners of one of the manufacturer’s fullsized cars reviewed several complaints about early transmission problems. Nationwide, the population mean mileage, μ, is 80,000 miles, with a population standard deviation, σ, of 18,000 miles.Use hypothesis testing to determine whether the sample data support the conclusion thatthe mean mileage of vehicles produced by this manufacturer is lower than the nationalaverage mileage at transmission failure. Be sure to clearly state your hypotheses. Usethe p-value approach to conduct the hypothesis test using α = .005. Include the teststatistic, p-values, rejection rule, and conclusions in your answer.
