3. The operations division manager of a logistics company is trying to identify whether the useof nitrogen to fill tires instead of normal air improves fuel economy. The tires of 12 truckswere filled with nitrogen and tested over a prescribed course. Without changing drivers, thetires of the same trucks were then filled with normal air and driven once again over the testcourse. The mileage was recorded as follows:Mileage (in kilometers/liter)Using Nitrogen Using Normal Air5.1Truck4.92.4.84.85.45.244.74.85.35.15.65,44,664.84.94.89.5.05.1104.54.2115.65.5125.15.0a. Test whether using nitrogen instead of normal air improves fuel econamy (increases themileage) at 0.05 level of significance.b. Find a 95% confidence interval of the difference between the mean of mileage of truckswhose tires is filled with nitrogen and the mileage of trucks filled whose tires is filledwith normal air. interpret.

Let the random variables X1 and X2 denote the mileage for truck tires filled with nitrogen and…

Answered: 3. The operatians division manager of a…

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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