Calculate the 95% prediction intervals for the four different investments included in the following table. 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% The 95% prediction interval of small stocks is between l% and %. (Round to two decimal places and put the lower number first.)