Answer
Experimental study, because people were divided into groups and diet variable was manipulated.
Work Step by Step
No steps
Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition
by Bluman, Allan
Published by
McGraw-Hill Education
ISBN 10:
0078136334
ISBN 13:
978-0-07813-633-7
Chapter 1 - The Nature of Probability and Statistics - Review Exercises - Section 1-4 - Page 35: 48
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