Answer
$[12.82,17.18]$
Work Step by Step
We found that the margin of error in part b is: $M=\pm 0.0218=2.18\%$
To get the interval, we perform $15-2.18=12.82\\15+2.18=17.18$
Hence, the interval is $[12.82,17.18]$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 11 Data Analysis and Statistics - Mixed Review of Problem Solving - Lessons 11.3-11.5 - Page 782: 8c
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