Answer
$0.95$
Work Step by Step
We can get the efficient rating from the table: $0.95$. Hence the Wilcoxon rank-sum test will only deviate a littlebit from the corresponding test of normal population.
Elementary Statistics (12th Edition)
by Triola, Mario F.
Published by
Pearson
ISBN 10:
0321836960
ISBN 13:
978-0-32183-696-0
Chapter 13 - Nonparametric Statistics - 13-4 Wilcoxon Rank-Sum Test for Two Independent Samples - Basic Skills and Concepts - Page 659: 4
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