The Basic Practice of Statistics 7th Edition

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

Chapter 15 - Sampling Distributions - Apply Your Knowledge - Page 366: 15.16c

Answer

We have 10 out of 25 values with the difference equal to or greater than 25. Hence: $P(Mean\ Difference \geq 12) = 10/25 = 0.4$

Work Step by Step

We have 10 out of 25 values with the difference equal to or greater than 25. Hence: $P(Mean\ Difference \geq 12) = 10/25 = 0.4$
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