(1 point) It is necessary for an automobile producer to estimate the mean number of miles per gallon (mpg) achieved by i

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1 Point It Is Necessary For An Automobile Producer To Estimate The Mean Number Of Miles Per Gallon Mpg Achieved By I 1 (113 KiB) Viewed 68 times

(1 point) It is necessary for an automobile producer to estimate the mean number of miles per gallon (mpg) achieved by its cars. Suppose that the sample mean for a random sample of 40 cars is 27.8 mpg and the standard deviation of this sample is 3.4 mpg. Now suppose the car producer wants to test the hypothesis that u , the mean number of miles per gallon, is 26 mpg against the alternative hypothesis that it is greater than 26 mpg. Conduct this hypothesis test using a significance level of a = .05 and provide the following information: (a) The test statistic (b) The P-value (c) The final conclusion is O A. There is not sufficient evidence to reject the null hypothesis. Therefore we can NOT claim that the population mean gas mileage for the cars produced by this automobile manufacturer is greater than 26 mpg OB. We have sufficient evidence to reject the null hypothesis. Therefore we can claim that it appears the population mean gas mileage for the cars produced by this automobile manufacturer is greater than 26 mpg. O C. We have sufficient evidence to reject the null hypothesis. Therefore we can NOT claim that it appears the population mean gas mileage for the cars produced by this automobile manufacturer is greater than 26 mpg. OD. There is not sufficient evidence to reject the null hypothesis. Therefore we can claim that the population mean gas mileage for the cars produced by this automobile manufacturer is greater than 26 mpg