The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 1-46414-253-X
ISBN 13: 978-1-46414-253-6

Chapter 4 - Scatterplots and Correlation - Chapter 4 Exercises - Page 125: 4.44b

Answer

The researchers used the previous times for men and women and extrapolated times for both men and women. The extrapolated times were used to determine when women would beat men. Their prediction was not accurate.

Work Step by Step

The website used for the comparison for the women's and men's records was https://en.wikipedia.org/wiki/Marathon_world_record_progression
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