You are evaluating the performance of two portfolio managers, and you have gathered annual return data for the past decade Year Mgr X Return Mgr Y Return 1 -15 -6.5 2 -1.5 -3.5 3 -1.5 -15 4567 -1.0 3.5 0.0 4.5 4.5 6.5 6.5 7.5 8 8.5 8.5 9 13.5 12.5 10 17.5 13.5 Average 4.5 4.5 Std Dev 6.90 6.63 0.65 4.20 Semi-dev Question 1: Calculate Sharpe Ratio for both managers Question 2 Calculate Sortino Raito for both managers Question 3: Based on the above calculation which managers performance is best. Why do both measures yield different results