heres a sampled of 361 people in total. People were allowed to self-identify as a heavy smoker or a non-smoker (mutually exclusive outcomes), and as diagnosed with lung cancer or not diagnosed with lung cancer (mutually exclusive outcomes). All surveyed people were under the age of 55, with similar age distributions in the smoking and not smoking categories. 343 people said that they did not smoke, and of those 343 people, 58 had been diagnosed with lung cancer. Only 18 people said that they were heavy smokers, and of those 18, 14 had been diagnosed with lung cancer. A. A chi-squared test of independence yields a p-value of 2e-9. Assuming an alpha of 0.05, what can you conclude from the data based solely on the chi-squared test? Explain. B. 95% Cl of odd ratios (OR) of odds (cancer / smoking) / odds (cancer /no cancer ) is 5.1 -73.5. What can you conclude based solely on the odds?
Theres a sampled of 361 people in total. People were allowed to self-identify as a heavy smoker or a non-smoker (mutually exclusive outcomes), and as diagnosed with lung cancer or not diagnosed with lung cancer (mutually exclusive outcomes). All surveyed people were under the age of 55, with similar age distributions in the smoking and not smoking categories. 343 people said that they did not smoke, and of those 343 people, 58 had been diagnosed with lung cancer. Only 18 people said that they were heavy smokers, and of those 18, 14 had been diagnosed with lung cancer.
A. A chi-squared test of independence yields a p-value of 2e-9. Assuming an alpha of 0.05, what can you conclude from the data based solely on the chi-squared test? Explain.
B. 95% Cl of odd ratios (OR) of odds (cancer / smoking) / odds (cancer /no cancer ) is 5.1 -73.5. What can you conclude based solely on the odds?
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