Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 8 - Hypothesis Testing - 8-3 Testing a Claim About a Proportion - Basic Skills and Concepts - Page 407: 2



Work Step by Step

$\hat{p}$ is the number of people responding "yes" divided by the total number of responding people. Hence $\hat{p}=\frac{x}{n}=\frac{411}{411+592}=0.4098$
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