Stats: Modeling the World Nasta Edition Grades 9-12
Stats: Modeling the World Nasta Edition Grades 9-12
3rd Edition
ISBN: 9780131359581
Author: David E. Bock, Paul F. Velleman, Richard D. De Veaux
Publisher: PEARSON
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Chapter 13, Problem 21E
To determine

To explain why the experimenters just not give everyone the omega-3 fats to see if they improved.

Expert Solution & Answer
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Answer to Problem 21E

Because of comparison purpose.

Explanation of Solution

To check the performance, researcher needed to compare omega-3 results to something else. Therefore, there might be other factors which influence the results. This will help the placebo to ensure that this does not happen at the time of experiment.

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what is Research Design, Research Design Types, and Research Design Methods; Author: Educational Hub;https://www.youtube.com/watch?v=LpmGSioXxdo;License: Standard YouTube License, CC-BY