To find out which principle of experimental design does the coach’s plan violate and explain how this violation could lead to confounding.
Explanation of Solution
In this study, the coach wants to test the new exercise program that will increase upper body strength better than lifting weights on the players of his high school team.
In this, the coach lets the players choose which treatment they will undergo and thus the player were not randomly assigned to the treatments. This violates the principle of experimental design.
This violation could lead to confounding because people with similar characteristics such as strength, physique, etc. might choose for the same treatment. Hence, the result.
Chapter 4 Solutions
PRACTICE OF STATISTICS F/AP EXAM
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