Concept explainers
(a)
To find: the placebo for the given this experiment.
(a)
Answer to Problem 69E
Harmless leaf
Explanation of Solution
Placebo is an inactive substance or preparedness used to assess the potency of a medication in an experiment. subject had a dangerous leaf ribbed here and said it was poison ivy, and the placebo was the dangerous leaf.
(b)
To explain: how the study findings help the concept of a placebo effect.
(b)
Explanation of Solution
This is because people developed a rash on the placebo arm (a harmless leaf) merely because they felt they were under active treatment (a toxic ivic leaf). The findings are promoting the theory of a placebo effect.
Chapter 4 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
An Introduction to Mathematical Statistics and Its Applications (6th Edition)
Elementary Statistics (13th Edition)
Statistics: The Art and Science of Learning from Data (4th Edition)
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