[Verified Answer]: Suppose that an investigation of the…

Suppose that an investigation of the association between regular physical activity and ovarian cancer revealed that the incidence rate of ovarian cancer among women who engaged in regular physical activity was 30 per 100,000 women-years of followup while the rate among women who did not engage in regular physical activity was 45 per 100,000 years of follow-up. Calculate the risk difference of ovarian cancer for women who are physically active versus women who are not. Risk difference = (disease risk in expose – disease risk in unexposed) Record numerical value. If the answer should be recorded as a percentage, include the percent symbol after the numerical value (i.e., 50%). Should rounding be necessary, perform rounding at the end of the calculation. Round your answer to the nearest whole number.