2. 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, erythropotein (EPO), that stimulates the production of oxygen-bearing (and fatigue inhibiting( red blood cell. Assume that a mental health investi ator at a large clinic wants to determine whether E O, viewed as a potential therapeutic tool, might increase the endurance of severely depressed patients. Volunteer patients are randomly assigned to one of the two groups, a treatment group x1 that receive a prescribed amount of EPO and a control group that receives an harmless neutral substance. 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 score for the treatment and control groups x x2 12 [fl W? W? W? W? \\lI-Immnin g) Formulate the research question h) Formulate the statistical hypothesis (hint: Make sure to include the null and alternate hypotheses i) Write the decision rule j) Write the calculation by showing your work k) Write your decision I) Write the interpretation