3. A taxi company manager is trying to decide whether the use of 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 then equipped with regular belted tires and driven once again over the test course. The gasoline consumption, in kilometers per liter, was recorded as follows: Kilometers per Liter Car Radial Tires Belted Tires 4.2 4.1 2 3 4 4.7 6.6 7.0 4.9 6.2 6.9 6.8 5 6.7 4.5 4.4 7 5.7 5.7 8 6.0 5.8 6.9 7.4 10 4.9 6.1 5.2 4.7 6.0 11 12 4.9 Can we conclude that cars equipped with radial tires give better fuel economy than those equipped with belted tires? Assume the populations to be normally distributed. Use both p- yalue and critical yalue approach. Use g=0.10.
3. A taxi company manager is trying to decide whether the use of 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 then equipped with regular belted tires and driven once again over the test course. The gasoline consumption, in kilometers per liter, was recorded as follows: Kilometers per Liter Car Radial Tires Belted Tires 4.2 4.1 2 3 4 4.7 6.6 7.0 4.9 6.2 6.9 6.8 5 6.7 4.5 4.4 7 5.7 5.7 8 6.0 5.8 6.9 7.4 10 4.9 6.1 5.2 4.7 6.0 11 12 4.9 Can we conclude that cars equipped with radial tires give better fuel economy than those equipped with belted tires? Assume the populations to be normally distributed. Use both p- yalue and critical yalue approach. Use g=0.10.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Transcribed Image Text:3. A taxi company manager is trying to decide whether the use of 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 then equipped with
regular belted tires and driven once again over the test course. The gasoline consumption, in
kilometers per liter, was recorded as follows:
Kilometers per Liter
Car Radial Tires Belted Tires
4.1
4.2
2
4.7
4.9
3
6.6
6.2
4
7.0
6.9
5
6.7
6.8
4.5
4.4
5.7
7
5.7
8
6.0
5.8
9
7.4
6.9
10
4.9
4.7
6.1
5.2
6.0
4.9
11
12
Can we conclude that cars equipped with radial tires give better fuel economy than those
equipped with belted tires? Assume the populations to be normally distributed. Use both p-
value and critical value approach. Use a=0.10.
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