Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 9 - Section 9.2 - Assess Your Understanding - Vocabulary and Skill Building - Page 448: 16

Answer

$x̅ = 25$ Margin of Error $(E) = 5$

Work Step by Step

Lower bound = 20, upper bound = 30 $x̅ = \frac{20+30}{2} = 25$ Margin of Error $(E) = \frac{30-20}{2} = 5$
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