Question: "Researcher wanted to know whether there is an association between use of certain drug (Reserpine) and breast cancer. Their target population was 2 million women, 1 million from low socio-economic status (SES) and 1 million from high SES. The prevalence of breast cancer in this population and the use of Reserpine is documented bellow"
High SES Low SES
Breast cancer prevalence 20 per 100,000 20 per 100,000
Resperine 800 per 10,000 200 per 10,000