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biokam biokam
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On their website, the makers of Cold-EEZE lozenges provide links to studies done to demonstrate the effectiveness of their product at shortening the duration of the common cold. One study, published in the Annals of Internal Medicine, is described as a "randomized, double-blind, placebo-controlled" study.  Briefly explain what the phrase "randomized, double-blind, placebo-controlled" means.
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Statistics: Unlocking the Power of Data

Statistics: Unlocking the Power of Data


Edition: 3rd
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stanka82stanka82
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