MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A researcher wanted to determine if using an octane booster would increase gasoline mileage. A random sample of seven cars was selected; the cars were driven for two weeks without the booster and two weeks with the booster.

 

Miles / GalMiles / Gal
Without
With
27.36
28.91
25.01
25.6
29.98
26.47
28.08
28.31
22.08
27.85
25.75
29.64
28.12
29.53
Determine the difference between the sample mean mileage of the cars that are driven without a booster and
with a booster.
13.313
-1.419
13.313
O 1.419
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Transcribed Image Text:Miles / GalMiles / Gal Without With 27.36 28.91 25.01 25.6 29.98 26.47 28.08 28.31 22.08 27.85 25.75 29.64 28.12 29.53 Determine the difference between the sample mean mileage of the cars that are driven without a booster and with a booster. 13.313 -1.419 13.313 O 1.419
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