An investigator is interested in testing the recovery rate post intervention between a 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 many total participants are needed to have 80% power for the above (with alpha=0.05)?

An investigator is interested in testing the recovery rate post intervention between a 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 many total participants are needed to have 80% power for the above (with alpha=0.05)?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

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