An investigator isinterested in testing the recovery rate post interventionbetweena new and an existing treatment. She anticipates
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Question:
An investigator isinterested in testing the recovery rate post interventionbetweena new and an existing treatment. She anticipates that the new treatment will increase the proportion with a successful full recovery from 60% to 72%. In a randomized trial with an equal number of participants per group, how manytotal participants are needed to have 80% power for the above(with alpha=0.05)?
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