In a study of the risk factors for invasive cervical cancer that was conducted in Germany, the following data were collected relating smoking status to the presence of cervical cancer.
|
Smoker
|
Nonsmoker
|
Total
|
|
Cancer
No Cancer
|
108
163
|
117
268
|
225
431
|
|
Total
|
271
|
385
|
656
|
1. Estimate the relative odds of invasive cervical cancer for smokers versus nonsmokers.
2. Calculate a 95% confidence interval for the population odds ratio.
3. Test the null hypothesis that there is no association between smoking status and the presence of cervical cancer at the 0.05 level of significant.