This is a graded discussion: 9 points possible due Sep 6 Discussion 3 21 21 "Note make sure you review the "Discussion Rubric" located under Student Resources Module before completing the discussion questions to ensure you meet all requirements to earn full credit. Your responses, as well as those to your classmates, are due by the due dates given. OnlineDiscussionRequirements2.pdf & . You are only required to respond to one classmate for EACH assigned discussion question. The question of whether a radical mastectomy (removal of breast, chest muscles, and lymph nodes) is more effective than simple mastectomy (removal of the breast only) in prolonging the life of women with breast cancer has been debated intensely. To study this question, a medical team examines the records of five large hospitals and compares the survival times of all women who have had either operation. a) Explain carefully why this study is not an experiment. b) If an experiment could be performed, what would be the experimental units, the explanatory independent variable (or factor), and the response dependent variable? c) Briefly outline a design for such an experiment. Think in terms of a treatment group and a control group. How do you place subjects into the two groups? d) Can you identify any ethical issues with your randomized comparison design? Search entries or author Unread Reply Replies are only visible to those who have posted at least one reply