4. In a study at a hospital, 60 out of 120 smokers and 80 out of 200 nonsmokers were found to have lack of appetite. At the significance level of 1%, test if there is an association between smoking and lack of appetite.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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4. In a study at a hospital, 60 out of 120 smokers and 80 out of 200 nonsmokers
were found to have lack of appetite. At the significance level of 1%, test if
there is an association between smoking and lack of appetite.
Transcribed Image Text:4. In a study at a hospital, 60 out of 120 smokers and 80 out of 200 nonsmokers were found to have lack of appetite. At the significance level of 1%, test if there is an association between smoking and lack of appetite.
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