Statistics: Informed Decisions Using Data (4th Edition)

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

Chapter 8 - Section 8.2 - Assess Your Understanding - Vocabulary and Skill Building - Page 419: 13c

Answer

0.0233

Work Step by Step

To calculate $P(p̂ \leq 0.32)$, we need to find the z-score: $z = \frac{p̂ - μ_{p̂}}{σ_{p̂}}$ $= \frac{.32-.35}{0.015}$ = -2 $P(z \leq -2) = 0.0233$, hence: $P(p̂ \leq 0.32) = 0.0233$
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