If returns of S&P 500 stocks are normally distributed, what range of returns would you expect to see 95% of the time? Base your answer on the information below. Average Return Standard Deviation Small Stocks 19.77% 38.34% S&P 500 11.56% 19.08% Corporate Bonds 6.04% 6.49% T-Bills 3.94% 3.24% freturns The 95% prediction interval of the S&P500 is between % and%. (Round to two decimal places and put the lower number first.)