Researchers record t in miles per gallon) a hour). Using software egression line of the

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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Researchers record the fuel consumption of a car y
(in miles per gallon) at various speeds x (in miles per
hour). Using software, they determine that the
regression line of their data is
ŷ =
= 70.243 0.0274x
-
If the observed fuel consumption of the car was
y = 49 mpg while moving at a speed of x = 20
mph, what would be the error (i.e., residual) in the
predicted fuel consumption at this speed found with
the regression line? Round your answer to three
decimal places.
Transcribed Image Text:Researchers record the fuel consumption of a car y (in miles per gallon) at various speeds x (in miles per hour). Using software, they determine that the regression line of their data is ŷ = = 70.243 0.0274x - If the observed fuel consumption of the car was y = 49 mpg while moving at a speed of x = 20 mph, what would be the error (i.e., residual) in the predicted fuel consumption at this speed found with the regression line? Round your answer to three decimal places.
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