Relieving headaches. Doctors identify chronic tensiontype headaches asheadaches that

Chapter 0, Problem 9.32

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Relieving headaches. Doctors identify chronic tensiontype headaches asheadaches that occur almost daily for at least six months. Can antidepressant medications or stress management training reduce the number and severity ofthese headaches? Are both together more effective than either alone?(a) Use a diagram like Figure 9.1 to display the treatments in a design with twofactors: medication, yes or no and stress management, yes or no. Thenoutline the design of a completely randomized experiment to compare thesetreatments.(b) The headache sufferers named below have agreed to participate in the study.Randomly assign the subjects to the treatments. If you use the Simple RandomSample applet or other software, assign all the subjects. If you use Table B, start atline 130 and assign subjects to only the first treatment group.Abbott Decker Herrera Lucero RichterAbdalla Devlin Hersch Masters RileyAlawi Engel Hurwitz Morgan SamuelsBroden Fuentes Irwin Nelson SmithChai Garrett Jiang Nho SuarezChuang Gill Kelley Ortiz UpasaniCordoba Glover Kim Ramdas WilsonCuster Hammond Landers Reed Xiang