Statistics: Informed Decisions Using Data (4th Edition)

by Sullivan III, Michael

Published by Pearson

ISBN 10: 0321757270

ISBN 13: 978-0-32175-727-2

Chapter 8 - Section 8.1 - Assess Your Understanding - Applying the Concepts - Page 412: 31e

Answer

7/15 = 0.47

Work Step by Step

Mean = 46.3. Within 3 years of the sample mean implies: $43.3 \leq x̅ \leq 49.3$ Using the sampling distribution from part c, we have: $P(43.3 \leq x̅ \leq 49.3) = 7/15$

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