HW4 - Stt 422 HW 4 Due Monday June 23 1 Consider the...

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Stt 422 HW 4 Due Monday, June 23 1. Consider the following two way contingency table: Lung Cancer No Lung Cancer Smoker 19 86 Non Smoker 3 107 a) Find the odds of having lung cancer for a smoker. b) Find the odds ratio of having lung cancer for smokers versus non smokers c) Find the 90% and 95% confidence intervals of the preceding odds ratio. d) Is the odds ratio significantly different from 1 at the 0.05 level? e) Explain what your result in D) means as if I had no background in statistics. 2. Consider the following contingency table: CHD No CHD Normal BP 3 32 Borderline High BP 8 24 High BP 13 19 a) Find the odds of having CHD for a person with normal blood pressure. b) Find the odds of having high BP for someone with CHD. c) Find the odds ratio of having CHD for someone with high BP versus someone  with normal BP. d) Give a 98% Confidence Interval for your OR in C) e) Find the odds ratio of having CHD for someone with high BP versus someone 
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This note was uploaded on 07/25/2008 for the course STT 422 taught by Professor Porter during the Summer '08 term at Michigan State University.

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HW4 - Stt 422 HW 4 Due Monday June 23 1 Consider the...

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