Answer
$23.7-35.7minutes$
Work Step by Step
Use empirical rule, the range would be within 1 standard deviation:
$29.7-6$ to $29.7+6$ or $23.7-35.7minutes$
Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition
by Bluman, Allan
Published by
McGraw-Hill Education
ISBN 10:
0078136334
ISBN 13:
978-0-07813-633-7
Chapter 3 - Data Description - Review Exercises - Section 3-2 - Page 179: 19
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