Required: Using Table 53 as your guide, what is your estimate of the expected annual HPR on the market index stock portfolio if the current risk- free interest rate is 47%? (Round your answer to 2 decimal places.) Expected annual HPR % TABLE 5.3 Risk and return of investments in major asset classes T-bills 3.38 Average Risk premium Standard deviation na 3.12 14.71 -0.02 T-bonds 5.83 2.45 11.59 41.68 -25.96 Stocks 11.72 8.34 20.05 57.35 --44.04 max min