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Mathematics, 23.03.2020 16:44 YSGabino6019
A car company claims that its new car, the GoFast2000, has a gas mileage of 35 miles per gallon ( mpg ). A consumer group suspects that the true mean gas mileage of the new cars is less than 35 mpg . The group tests 50 randomly selected Go Fast 2000 cars and finds a sample mean of 34.8 mpg . With all assumptions for inference met, a hypothesis test resulted in a p -value of 0.324.
State the null and alternative hypothesis needed to conduct this test. What test statistic should be used and why? Should any assumption be made about the distribution of MPG? What conclusion can be drawn from the sample results? Test at 0.05 level of significance.
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A car company claims that its new car, the GoFast2000, has a gas mileage of 35 miles per gallon ( mp...
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