An investigative team wishes to design a study to evaluate a new dietary regimen for weight loss. The primary outcome is weight loss in one year, and the investigators expect subjects to lose an average of at least 5 pounds during that time. They also assume that the standard deviation of weight loss values will be 12 pounds. If they enroll 50 subjects in the study, what is the power of the study to detect that the average weight loss is not zero (i.e., to reject a null hypothesis of zero weight loss) if the true average weight loss is 5 pounds? Assume an alpha level of 0.05 and a two-sided test. 0 a.6.1% O b. 16.1% 0 c. 83.9% d.>99.9%