What are explanatory and response variables for given study

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Reference no: EM131411526

Refer to a study published in the Journal of the American Medical Association and reported in the Sacramento Bee on January 26, 2000 ("Study Ties Hormone Replacement, Cancer" by Shari Roan, p. A1). A sample of 46,355 postmenopausal women were studied for 15 years and asked about their use of hormone therapy and whether or not they had breast cancer; 2082 developed the disease. The article reported that "for each year of combined [estrogen and progestin] therapy, a woman's risk of breast cancer was found to increase by 8 percent compared to a 1 percent increase in women taking estrogen alone."

What are the explanatory and response variables for this study? Are they quantitative or categorical? If they are categorical, what are the categories?

Reference no: EM131411526

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