Elementary Statistics (12th Edition)

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

Chapter 13 - Nonparametric Statistics - 13-2 Sign Test - Basic Skills and Concepts - Page 646: 1

Answer

See explanation below.

Work Step by Step

There is only one requirement: the matched pairs originate from a simple random sample. No requirement of a normal distribution. The test is "distribution free" because there is no requirement for the population distribution.
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