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Due to concerns about the safety of bariatric weight loss surgery, in 2006 the centers of medicare and medicaid services (cms) restricted coverage of bariatric surgery to hospitals designated as centers for excellence. did the cms restriction improve the outcomes of bariatric surgery for medicare patients? among the 1847 medicare patients in the study having surgery in the 18 months preceding the restriction, 270 experienced overall complications, whereas in the 1639 patients having bariatric surgery in the 18 months following the restriction, 170 experienced overall complications
(a) what are the sample proportions of medicare patients who experienced overall complications from bariatric surgery before and after the cms restriction? let pi be the sample proportion with complications before the restriction, and p2 be the sample proportion with complications after the restriction enter your answers rounded to four decimal places.)
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Due to concerns about the safety of bariatric weight loss surgery, in 2006 the centers of medicare a...
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