Answer
We must use $ŷ=|-7.061|=7.061$ because it is a winning margin.
Work Step by Step
$ŷ=1.007x-0.012$. Now, for $x=-7$:
$ŷ=1.007\times(-7)-0.012$
$ŷ=-7.061$
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 4 - Review - Review Exercises - Page 246: 1b
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