For some time there has been debate about whether regular large doses of vitamin C reduce the
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a. Explain how you could design an experiment to test this. Describe all parts of the experiment, including (i) what the treatments are, (ii) how you assign subjects to the treatments, and (iii) how you could make the study double-blind.
b. An observational study indicates that people who take vitamin C regularly get fewer colds, on the average. Explain why these results could be misleading.
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Related Book For
Statistics The Art And Science Of Learning From Data
ISBN: 9780321755940
3rd Edition
Authors: Alan Agresti, Christine A. Franklin
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