It is believed that the proportion of patients who develop pulmonary complications after undergoing cardiac surgery is 8%. How large should the sample size for two groups (Intervention vs. Control) if an investigator wishes to detect a relative reduction of 25% in the pulmonary complication rate after implementing the preoperative intervention, assumed a power of 90% and a Type I error of 0.05?

It is believed that the proportion of patients who develop pulmonary complications after undergoing cardiac surgery is 8%. How large should the sample size for two groups (Intervention vs. Control) if an investigator wishes to detect a relative reduction of 25% in the pulmonary complication rate after implementing the preoperative intervention, assumed a power of 90% and a Type I error of 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 4GP

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