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 of returns Small Stocks 18.37% 38.79% S&P 500 11.84% 20.01% Corporate Bonds 6.47% 6.98% T-Bills 3.46% 3.14% % and %. (Round to two decimal places and put the The 95% prediction interval of the S&P500 is between lower number first.)