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A New York Times article (March 12, 2006) described two studies in which subjects who had recently had a heart

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A New York Times article (March 12, 2006) described two studies in which subjects who had recently had a heart attack were randomly assigned to one of four treatments: placebo and three different doses of vitamin B. In each study, after years of study, the differences among the proportions having a heart attack were judged to be not statistically significant. Identify the
(a) Response variable.
(b) Explanatory variable.
(c) Experimental units.
(d) Treatments.
(e) Explain what it means to say that differences “were judged to be not statistically significant.”

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a The response variable is whether or not the subject …View the full answer


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Statistics The Art And Science Of Learning From Data

Statistics The Art And Science Of Learning From Data

ISBN: 9780321755940

3rd Edition

Authors: Alan Agresti, Christine A. Franklin

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Question Posted: September 11, 2015 03:56:11
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