A regional cancer treatment center has had success treating localized cancers with a linear accelerator. Whereas admissions

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A regional cancer treatment center has had success treating localized cancers with a linear accelerator. Whereas admissions for further treatment nationally average 2.1 per patient per year, the center’s director thinks that readmissions with the new treatment are Poisson distributed, with a mean of 1.2 patients per year. He has collected the following data on a random sample of 300 patients:

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a. Adjust the data so that you can test the director’s claim using a test statistic whose sampling distribution can be approximated by a chi-square distribution.
b. Assume the Type I error rate is to be controlled at 0.05. Do you agree with the director’s claim? Why? Conduct a statistical procedure to support your opinion.
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Business Statistics A Decision Making Approach

ISBN: 9780133021844

9th Edition

Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry

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