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Question 2 Consider the results of a prospective cohort study following a group of quarry employees working in an asbestos mine shown in Table .The researchers want to know if asbestos is a risk factor for lung cancer. The employees were broken into two groups. The exposed group consisted of miners who were exposed to high levels of asbestos on a day to day basis. The unexposed group consisted of quarry administrators, office workers, drivers and maintenance employees who were never exposed to high levels of asbestos Lung Cancer Outcome Present Absent Present 330 Asbestos Exposure Absent 543 a) Determine the Relative Risk, Attributable Risk b) Perform hypothesis testing to determine if there is a relative risk of lung cancer from asbestos exposure (a-0.05)

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