Blood Thinner Study Narrative
A study of an experimental blood thinner was conducted to determine whether it works better than the simple aspirin tablet in warding off heart attacks and strokes. The study involved 20,000 people who had suffered heart attacks, strokes, or pain from clogged arteries. Each person was randomly assigned to take either aspirin or the experimental drug for one to three years. Assume that each person was equally likely to be assigned one of the two medications.
-Refer to Blood Thinner Study Narrative. Will there be an equal number of patients in each treatment group? Explain.

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The Answer of Blood Thinner Study Narrative
A study of an experimental blood thinner was conducted to determine whether it works better than the simple aspirin tablet in warding off heart attacks and strokes. The study involved 20,000 people who had suffered heart attacks, strokes, or pain from clogged arteries. Each person was randomly assigned to take either aspirin or the experimental drug for one to three years. Assume that each person was equally likely to be assigned one of the two medications.
-Refer to Blood Thinner Study Narrative. Will there be an equal number of patients in each treatment group? Explain.