Answer
0.899 mg.
Work Step by Step
$ŷ =0.05753x+0.2088$ (Problem 16 in Section 14.1)
For a randomly selected cigarette whose tar content is 12 mg, that is, $x=12$:
$ŷ =0.05753\times12+0.2088=0.899$
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 14.2 - Assess Your Understanding - Applying the Concepts - Page 698: 12c
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