Calculate the 95% confidence intervals for the four different investments included in the following table.

Small Stocks	S&P 500	Corporate Bonds	T-Bills
Average Return	20.95%	11.95%	5.01%	4.13%
Standard Deviation of returns	42.82%	19.85%	7.59%	4.08%

The 95% confidence interval of small stocks is between ____ & _____ %

The 95% confidence interval of the S&P500 is between ____ & _____ %

The 95% confidence interval of corporate bonds is between _____ & _____ %

The 95% confidence interval of T-bills is between ____ & ____ %

(The table won't let me adjust but all the headings should be moved to the right by 1)