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A new pollution is claimed only to reduce carbon monoxide emission but also to increase a car's miles per gallon. To test the latter claim, the mileage per gallon of 10 randomly selected cars is measured first without and then with the device, yielding the following data Car 1 <.05)? 123456 7899 Miles per gallon Without Device With Device 28 32 21 44 36 10 20 TI 11 14 11 9 34 32 14 46 Does the device significantly increase cars' mileage per gallon (a 10 200470201 9 48

A new pollution is claimed only to reduce carbon monoxide emission but also to increase a car's miles per gallon. To test the latter claim, the mileage per gallon of 10 randomly selected cars is measured first without and then with the device, yielding the following data Car 1 <.05)? 123456 7899 Miles per gallon Without Device With Device 28 32 21 44 36 10 20 TI 11 14 11 9 34 32 14 46 Does the device significantly increase cars' mileage per gallon (a 10 200470201 9 48

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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Answers: 3) t = 0.163, Do not reject Ho; no evidence that the device increases cars' mpg
3. A new pollution control device for automobiles is claimed not only to reduce carbon monoxide emission but also to increase a car's miles per gallon. To test the latter claim, the mileage per gallon of 10 randomly selected cars is measured first without and then with the device, yielding the following data Car L23456 1 7899 10 Miles per gallon Without Device With Device 32 21 36 10 20 14 28 20 44 7 20 11 11 34 9 48 9 32 14 46 Does the device significantly increase cars' mileage per gallon (a <.05)?
Transcribed Image Text:3. A new pollution control device for automobiles is claimed not only to reduce carbon monoxide emission but also to increase a car's miles per gallon. To test the latter claim, the mileage per gallon of 10 randomly selected cars is measured first without and then with the device, yielding the following data Car L23456 1 7899 10 Miles per gallon Without Device With Device 32 21 36 10 20 14 28 20 44 7 20 11 11 34 9 48 9 32 14 46 Does the device significantly increase cars' mileage per gallon (a <.05)?
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