Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321755936
ISBN 13: 978-0-32175-593-3

Chapter 10 - Analysis of Variance - Exercises 10.1 - 10.14 - Understanding the Principles - Page 480: 10.3

Answer

In Observational Study, analyst just observes the treatment and response in experimental units. On the other hand, in a a designed study the analyst controls the specification of the treatments and the method of assigning the experimental units to each treatment.

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