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 - Review - Review Exercises - Page 523: 9a

Answer

$χ2 = 15.06$

Work Step by Step

Here we have: $H_{o}$:σ = 5.2, $H_{1}: σ \ne 5.2$, n = 18, s = 4.9, df = n-1 = 17 and α = 0.05 $χ2 = \frac{n-1}σ^{2}{s^{2}} = \frac{17}{27.04}24.01 = 15.06$

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