The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 146414253X
ISBN 13: 978-1-46414-253-6

Chapter 21 - Comparing Two Means - Chapter 21 Exercises - Page 511: 21.35c

Answer

There is no certainty that coaching has caused the coached students to gain more in view of part A and part B.

Work Step by Step

There is no certainty that coaching has caused the coached students to gain more in view of part A and part B.
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