3. a) b) C) d) e) f) Direction: During the recent tour the France, the world's best known athlete bicycles race. some cyclists have been expelled for attempting to enhance their performance by 'blood doping' with a synthetic hormone,erythro tein (EPO), that stimulates the production of oxygen-bearing (and fatigue inhibiting red blood cell). Assume thatp a mental health investigator at a large clinic wants to determine whether EPO, viewed as a potential therapeutic tool. might increase the endurance of severely depressed patients. Volunteer patients are measured twice once with and once without EPO. Subsequent endurance scores are based on the total of time in minutes that each patients remains on a rapidly moving treadmill The statistical score focuses on the difference between means endurance (alpha=. 05) X1 X2 before . After 11 4 5 1 ll 5 11 S 5 2 12 8 Formulate the research question Formulate the statistical hypothesis (hint: Make sure to include the null and alternate hypotheses Write the decision rule Write the calculation by showing your work Write your decision Write the interpretation