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SAT, 18.04.2021 14:00 anthonygeorge7
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Question: Nike Developed A New Type Of Sneaker Designed To Help...
Nike developed a new type of sneaker designed to help delay the onset of arthritis in the knee. Eighty
people with early signs of arthritis volunteered for the study. One-half of the volunteers wore the
experimental sneaker and the other half wore regular Nike sneakers that looked exactly like the experimental
hsneakers. The individuals wore the sneakers every day. At the conclusion of the study, their symptoms were
evaluated and an MRI was performed on their knees.
1. Identify the experimental units in this experiment
2. How many treatments are used in this experiment?
3. Identify a potential problem with the experimental design being used and suggest a way to improve it.
4. Explain what is meant by a placebo-controlled, double-blind study.
5. Of the 80 volunteers, suppose 40 are men and 40 are women. How could blocking be used in
designing this experiment
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