Elementary Statistics (12th Edition)

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

Chapter 1 - Introduction to Statistics - 1-4 Collecting Sample Data - Basic Skills and Concepts - Page 33: 17

Answer

Random sample.

Work Step by Step

The subjects were randomly assigned to different treatments, so the sample is a random sample.
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