Answer
$ŷ =28.72−0.03040x_3$
The coefficient for $x_3$: if the horsepower increases by 1, then the gas mileage will decrease by 0.03040 miles per gallon, on average.
Work Step by Step
Given above.
Statistics: Informed Decisions Using Data (4th Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0321757270
ISBN 13:
978-0-32175-727-2
Chapter 14 - Section 14.3 - Assess Your Understanding - Applying the Concepts - Page 725: 31g
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