One hundred leukemia patients were randomly assigned to two treatments. During the study, 10 subjects on treatment
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One hundred leukemia patients were randomly assigned to two treatments. During the study, 10 subjects on treatment A died and 18 subjects on treatment B died. The total time at risk was 170.4 years for treatment A and 147.3 years for treatment B. Test whether the two treatments have the same death rates. Compare the rates with a confidence interval.
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a SUGGESTION Given that the number of deaths are not too small we can use the normal approximation t...View the full answer
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