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 10 - Section 10.3 - Assess Your Understanding - Skill Building - Page 502: 4a

Answer

$t_{0} = 2.67$

Work Step by Step

$t_{0} = \frac{x̄ - μ_{o}}{σ/\sqrt n}$ $= \frac{42.3 - 40}{4.3/\sqrt 25} = 2.67$

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