Help Check my work mode: This shows what is correct or incorrect for the work you have completed so far. It does not indicate 7 Problem 7-15 Consider the following information: Expected Standard Portfolio Return Deviation Risk-free 58 08 Market 12.4 32 10.4 21 a. Calculate the Sharpe ratios for the market portfolio and portfolio A. (Round your answers to 2 decimal places.) Answer is complete but not entirely correct. Market portfolio Portfolio A Sharpe Ratio 23.13 X 25.71 x An..