Answer
0.1922
Work Step by Step
To calculate $P(p̂ \geq 0.84)$, we need to find the z-score:
$z = \frac{p̂ - μ_{p̂}}{σ_{p̂}}$
$= \frac{0.84-0.8}{0.046}$ = 0.87
$P(z \geq 0.87) = 0.1922$, hence:
$P(p̂ \geq 0.87) = 0.1922$
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 8 - Section 8.2 - Assess Your Understanding - Vocabulary and Skill Building - Page 418: 11b
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