Answered: An automotive engineer believes that…

Name: An automotive engineer believes that her newly designed engine will be
Uploaded: 2024-03-20T07:07:12.000Z
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Description: An automotive engineer believes that her newly designed engine will be a great gas saver. A large number of tests on engines of the old design yielded a mean gasoline consumption of 25.5 miles per gallon, with a standard deviation of 4.2. Fifteen new

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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An automotive engineer believes that her newly designed engine will be a great gas saver. A large number of tests on engines of the old design yielded a mean gasoline consumption of 25.5 miles per gallon, with a standard deviation of 4.2. Fifteen new engines are tested. The mean gasoline consumption is 29.6 miles per gallon. What is your conclusion? Use alpha = 0.05_1-tailed.

What is the alternative hypothesis?
What is the null hypothesis?
Report the p value and compare it to alpha of 0.01_1-tailed.
What do you conclude about the performance of the new engines?

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