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 information below the T-Bills 483% 3.32% S&P 500 11.07% 20.73% Corporate Bonds Small Stocks 19.26% 39 72% Average Return Standard Deviation of returns 6.51% s and put the lower number first.) Round to two deci al place % % and The 95% prediction interval of the S&P500 is between