Answer
26.76%
Work Step by Step
$(30-26.8)/5.2 = z$
$3.2/5.2= z$
$.615 = z$ (rounded to .62)
.7324 is the value when z=.62
$1-.7324 = .2676$
The Basic Practice of Statistics 7th Edition
by Moore, David S.; Notz, William I.; Fligner, Michael A.
Published by
W. H. Freeman
ISBN 10:
146414253X
ISBN 13:
978-1-46414-253-6
Chapter 3 - The Normal Distributions - Chapter 3 Exercises - Page 96: 3.34b
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