Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

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



Work Step by Step

Use empirical rule, the range would be within 1 standard deviation: $29.7-6$ to $29.7+6$ or $23.7-35.7minutes$
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