Companies often develop and test hypotheses about their products For example, car manufacturers will test their cars to determine fuel efficiency and miles per gallon To ensure that products are safe and that they perform as advertised, regulatory and consumer protection groups also test companies' claims For this Assignment, you are working at a firm that conducts independent testing for heavy industry Recently, an automobile manufacturer has been in the news for complaints about the highway gas mileage of their latest model minivan You receive a contract from a consumer action group to test and release a report on the company's claim that its minivans get 28 miles per gallon on the highway The car company agrees to allow you to select randomly 35 low mileage fleet minivans to test their highway mileage Your test results gave you the following data 29 724 527 129 829 227 027 824 129 3 25 926 224 532 826 827 824 023 629 2 26 527 727 123 724 127 225 926 727 8 27 327 622 825 326 626 427 126 1 Complete the following and include your results and responses in your report (use alpha 0 05) List the null and alternative hypotheses for the two tail test for the mean Calculate the observed value of the test statistic and the associated p value Is the observed test statistic in the critical region Is the p value higher or lower than your alpha Note Include your calculations If your calculations are submitted separately, make note of where they can be found Conclusions In your report, use the confidence interval information and the results of the hypothesis testing to provide support for your conclusions and recommendations to the company Specifically What conclusions did you reach What did you learn about the situation by using each method Did one method offer more conclusive proof than another Based on your results, do you support the company's claimthat their minivans get 28 miles per gallon (75 Summarize the details of your test methods and the results from each statistical method you used Explain the findings so that executives from both the agency and the company can understand your conclusion Finally, present recommendations for actions that the company might take to use your findings to better serve their customers in the future

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Companies often develop and test hypotheses about their products. For example, car manufacturers will test their cars to determine fuel efficiency and miles per gallon.

Companies often develop and test hypotheses about their products. For example, car manufacturers will test their cars to determine fuel efficiency and miles per gallon. To ensure that products are safe and that they perform as advertised, regulatory and consumer protection groups also test companies' claims.

For this Assignment, you are working at a firm that conducts independent testing for heavy industry. Recently, an automobile manufacturer has been in the news for complaints about the highway gas mileage of their latest model minivan. You receive a contract from a consumer action group to test and release a report on the company's claim that its minivans get 28 miles per gallon on the highway. The car company agrees to allow you to select randomly 35 low-mileage fleet minivans to test their highway mileage. Your test results gave you the following data:

29.724.527.129.829.227.027.824.129.3

25.926.224.532.826.827.824.023.629.2

26.527.727.123.724.127.225.926.727.8

27.327.622.825.326.626.427.126.1

Complete the following and include your results and responses in your report (use alpha = 0.05):

List the null and alternative hypotheses for the two-tail test for the mean. Calculate the observed value of the test statistic and the associated p-value.
Is the observed test statistic in the critical region? Is the p-value higher or lower than your alpha?
Note:Include your calculations. If your calculations are submitted separately, make note of where they can be found.

Conclusions:

In your report, use the confidence interval information and the results of the hypothesis testing to provide support for your conclusions and recommendations to the company. Specifically:

What conclusions did you reach? What did you learn about the situation by using each method? Did one method offer more conclusive proof than another?
Based on your results, do you support the company's claimthat their minivans get 28 miles per gallon? (75
Summarize the details of your test methods and the results from each statistical method you used. Explain the findings so that executives from both the agency and the company can understand your conclusion.
Finally, present recommendations for actions that the company might take to use your findings to better serve their customers in the future.