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 13 - Section 13.1 - Assess Your Understanding - Applying the Concepts - Page 636: 27a

Answer

Std Dev (Control Group) = $4.65$ Std Dev (RAP) = $3.65$ Std Dev (Headache) = $2.9$

Work Step by Step

Std Dev (Control Group) = $\sqrt 21.6 = 4.65$ Std Dev (RAP) = $\sqrt 13 = 3.65$ Std Dev (Headache) = $\sqrt 8.4 = 2.9$

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