IMPORTANT NOTE The following is an open-book, open-note assignment. Collaboration is not allowed. Please show all your work, as no credit will be given for unsupported answers. Feel free to e-mail me with questions at nega_ginge@yahoo.com. You can also try calling me on my cell phone (504) 450-7184, but your call may not go through due to Katrina-related problems with phones in the (504) area code. You can either e-mail your solutions to me at the e-mail address above or send them by snail mail to Stephen Looney 11888 Longridge Ave. Apt. 1007 Baton Rouge, LA 70816 If you do use snail mail, please make sure that your solution to Assignment 2 is post-marked by October 17, 2005. Good luck! Assignment 2 (Due Monday, October 17, 2005)

(1) Work Exercise 2.1, p. 45. For part (b), find an approximate 95% CI for the risk difference, RR, and OR.

(2) Work Exercise 2.2, pp. 45-46 in our textbook.

(3) Work Exercise 2.10, p. 47 in our textbook.

NOTE: The required pages in the textbook are attached to this assignment.