A researcher conducted a study to determine if aspirin reduces the chance of a heart attack. He…

A researcher conducted a study to determine if aspirin reduces the chance of a heart attack. He randomly assigned 250 patients to take aspirin every day and 250 patients to take a placebo every day. After a certain length of time he reported the percentage of heart attacks for the patients who took aspirin every day and for those who did not take aspirin every day. What is the treatment in the study described above? a) The daily aspirin regimen. b) The daily placebo regimen. c) The occurrence of a heart attack. d) The 250 patients randomly assigned to take aspirin every day

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