Description Usage Format Source References
The data are from a retrospective study that compared mortality due to a heart infarct in people who smoked and sex-matched controls who did not.
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A matrix with 781 observations cross-classified on the following 2 factors: “Infarct” (”Yes” or “Control”, rows), and “EverSmoked” (”Yes” or “No”, columns).
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van Hulst, R. 2018. Evaluating Scientific Evidence. ms.
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