Question 42 0.2 pts
Lung cancer is the leading cause of cancer-related deaths in the United States.
Researchers are interested in studying the relationship between aspirin use and lung
cancer - for example, whether the use of aspirin reduces the risk of lung cancer. To study
this, they recruited individuals with lung cancer and individuals without lung cancer and
asked each person whether they take aspirin regularly.
They collected the following data:
303 individuals had lung cancer and said that they use aspirin regularly.
61 individuals had lung cancer and said that they do not use aspirin.
216 individuals did not have lung cancer and said that they use aspirin regularly; and
100 individuals did not have lung cancer and said that they do not use aspirin.
Lung Cancer
No Lung Cancer
Total
Aspirin Use
303
216
519
Do not use Aspirin
61
100
161
Total
364
316
680
For the question above, regarding the odds of using aspiring regulary among those with lung cancer relative to those with no lung cancer, when all the
required assumptions hold, what test statistic would you use to assess the association between aspirin use and lung cancer?
Also give the degrees of freedom of your test. Degrees of Freedom =
Question 43 0.3 pts