Mathematics, 27.03.2020 04:06, alyssarene16
There has been debate among doctors over whether surgery can prolong life among men suffering from prostate cancer, a type of cancer that typically develops and spreads very slowly. In the summer of 2003, The New England Journal of Medicine published results of some Scandinavian research. Men diagnosed with prostate cancer were randomly assigned to either undergo surgery or not. Among the 347 men who had surgery (group 1), 16 eventually died of prostate cancer compared with 31 of the 348 men (group 2) who did not have surgery. The difference in the sample proportions between the group that did not have surgery versus the group that had surgery is:
A) 15
B) 0.0215
C) 0.0430
Answers: 1
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