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A taxi company manager is trying to decide whether to use radial tires instead of regular belted tires improves fuel economy. Twelve cars were equipped with radial tires and driven over a prescribed test course. Without changing drivers, the same cars were equipped with regular belted tires and driven once again over the course. The gasoline consumption, in kilometers per liter, was recorded as follows: Cars Radial Tires 4.2 Belted Tires 1 4.1 2 4.7 4.9 3 6.6 6.2 7.0 6.7 4.5 5.7 6.0 7.4 4.9 6.1 6.9 6.8 4 5 6 4.4 5.7 5.8 6.9 7 8 10 4.7 11 6.0 12 5.2 4.9 Can we conclude that cars equipped with radial tires gives better fuel economy than those equipped with belted tires. Assume the populations to be normally distributed. Use a 0.05 level of significance. 20 pts

A taxi company manager is trying to decide whether to use radial tires instead of regular belted tires improves fuel economy. Twelve cars were equipped with radial tires and driven over a prescribed test course. Without changing drivers, the same cars were equipped with regular belted tires and driven once again over the course. The gasoline consumption, in kilometers per liter, was recorded as follows: Cars Radial Tires 4.2 Belted Tires 1 4.1 2 4.7 4.9 3 6.6 6.2 7.0 6.7 4.5 5.7 6.0 7.4 4.9 6.1 6.9 6.8 4 5 6 4.4 5.7 5.8 6.9 7 8 10 4.7 11 6.0 12 5.2 4.9 Can we conclude that cars equipped with radial tires gives better fuel economy than those equipped with belted tires. Assume the populations to be normally distributed. Use a 0.05 level of significance. 20 pts

MATLAB: An Introduction with Applications
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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A taxi company manager is trying to decide whether to use radial tires instead of regular belted tires improves fuel economy. Twelve cars were equipped with radial tires and driven over a prescribed test course. Without changing drivers, the same cars were equipped with regular belted tires and driven once again over the course. The gasoline consumption, in kilometers per liter, was recorded as follows: Cars Radial Tires 4.2 Belted Tires 1 4.1 2 4.7 4.9 3 6.6 6.2 7.0 6.7 4.5 5.7 6.0 7.4 4.9 6.1 6.9 6.8 4 5 6 4.4 5.7 5.8 6.9 7 8 10 4.7 11 6.0 12 5.2 4.9 Can we conclude that cars equipped with radial tires gives better fuel economy than those equipped with belted tires. Assume the populations to be normally distributed. Use a 0.05 level of significance. 20 pts
Transcribed Image Text:A taxi company manager is trying to decide whether to use radial tires instead of regular belted tires improves fuel economy. Twelve cars were equipped with radial tires and driven over a prescribed test course. Without changing drivers, the same cars were equipped with regular belted tires and driven once again over the course. The gasoline consumption, in kilometers per liter, was recorded as follows: Cars Radial Tires 4.2 Belted Tires 1 4.1 2 4.7 4.9 3 6.6 6.2 7.0 6.7 4.5 5.7 6.0 7.4 4.9 6.1 6.9 6.8 4 5 6 4.4 5.7 5.8 6.9 7 8 10 4.7 11 6.0 12 5.2 4.9 Can we conclude that cars equipped with radial tires gives better fuel economy than those equipped with belted tires. Assume the populations to be normally distributed. Use a 0.05 level of significance. 20 pts
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