Confidence Interval for the Difference in Two Population ProportionsNeutropenia is an abnormally low number of neutrophils in the blood.Chemotherapy often reduces the number of neutrphils to a level that makespatients susceptible to fever and infections. G. Bucaneve et al. published a studyof such cancer patients in the paper "Levofloxacin to Prevent Bacterial Infectionin Patients With Cancer and Neutropenia" (New England Journal of Medicine,Vol. 353, No. 10, pp. 977-987). For the study, 375 patients were randomlyassigned to receive a daily dose of levofloxacin, and 363 were given a placebo.In the group receiving levofloxacin, fever was present in 243 patients for theduration of neurtropenia, whereas fever was experienced by 308 patients in theplacebo group.The 95% confidence interval for the difference in the two proportions is (-.2613,-.1397).Which interpretation is correct?O p1 is substantially smaller than p2, therefore levofloxican is effective in reducing theincidence of fever among cancer patients suffering from neurtropeniap1 is substantially larger than p2, therefore levofloxican is effective in reducing theincidence of fever among cancer patients suffering from neurtropenia.p1 is similar to p2, therefore levofloxican is not effective in reducing the incidence offever among cancer patients suffering from neurtropenia

For the study: 375 patients received a daily dose of levofloxacin, and in the duration of…

Answered: Confidence Interval for the Difference…

Math

Statistics

Confidence Interval for the Difference in Two Population Proportions

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.2: Expected Value And Variance Of Continuous Random Variables

Problem 10E

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