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Evaluate the first study in Exercise 8.10 (p. 254) in the textbook: "Scientists Study Aspirin, Heart Attacks" according to our six-step program for...
Evaluate the first study in Exercise 8.10 (p. 254) in the textbook: "Scientists Study Aspirin, Heart Attacks" according to our six-step program for evaluating causal hypotheses. Use both Table 6.1 for margins of error and the exact calculation from chapter 6 Appendix to compare the margins of error to calculate both ways the margins of error and all estimates using margins of error.
Study: The first study involved 325 heart attack patients and 3807 other patients.It revealed that only .9% of the heart attack patients had been taking aspirin regularly before their attack. Aspirin taking was much higher (4.9%) among those patients who had not had heart attacks.
