Mathematics, 09.12.2021 02:20 sokalotus3448

Medicine A treats Symptom Y. 500 subjects with Symptom Y volunteered to take part in an experiment. 215 subjects were randomly assigned to receive a placebo and the rest received the medicine. Symptom Y disappeared in 140 of the controls and in 108 of the treatment group. In order to construct a 90% confidence interval to compare the medicine's efficacy, we should use:

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