Table 2.12 comes from one of the first studies of the link between lung cancer and smoking, by Richard Doll and A. Bradford Hill. In 20 hospitals in London, UK, patients admitted with lung cancer in the previous year were queried about their smoking behavior. For each patient admitted, researchers studied the smoking behavior of a noncancer control patient at the same hospital of the same sex and within the same 5-year grouping on age. A smoker was defined as a person who had smoked at least one cigarette a day for at least a year. a) Identify the response variable, the explanatory variable and identify the type of study this was. B) Can you use these data to compare smokers with nonsmokers in terms of the proportion who suffered lung cancer? Why or why not? c)Summarize the association and explain how to interpret it.
Table 2.12 comes from one of the first studies of the link between lung cancer and smoking, by Richard Doll and A. Bradford Hill. In 20 hospitals in London, UK, patients admitted with lung cancer in the previous year were queried about their smoking behavior. For each patient admitted, researchers studied the smoking behavior of a noncancer control patient at the same hospital of the same sex and within the same 5-year grouping on age. A smoker was defined as a person who had smoked at least one cigarette a day for at least a year. a) Identify the response variable, the explanatory variable and identify the type of study this was. B) Can you use these data to compare smokers with nonsmokers in terms of the proportion who suffered lung cancer? Why or why not? c)Summarize the association and explain how to interpret it.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Table 2.12 comes from one of the first studies of the link between lung cancer and smoking, by Richard Doll and A. Bradford Hill. In 20 hospitals in London, UK, patients admitted with lung cancer in the previous year were queried about their smoking behavior. For each patient admitted, researchers studied the smoking behavior of a noncancer control patient at the same hospital of the same sex and within the same 5-year grouping on age. A smoker was defined as a person who had smoked at least one cigarette a day for at least a year.
a) Identify the response variable, the explanatory variable and identify the type of study this was.
B) Can you use these data to compare smokers with nonsmokers in terms of the proportion who suffered lung cancer? Why or why not?
c)Summarize the association and explain how to interpret it.
Transcribed Image Text:Table 2.12. Data for Problem 2.16
Have Smoked
Yes
No
Controls
650
59
Total
709
Based on data reported in Table IV, R. Doll and A. B. Hill, Br. Med. J.,
739-748, September 30, 1950.
Lung Cancer
Cases
688
21
709
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