Calculate the 95% confidence intervals for the S&P/TSX Composite Index, the S&P 500 in CAD, long-term Government of Canada bonds, and treasury bills included in Figure 10.3 and 10.4. (Attached Below) please explain well! Thank you

Figure 10.3 Average Annual Returns in Canada for S&P/TSX Composite Index, S&P 500 in CAD, Long-Term Government of Canada Bonds, and Canadian Treasury Bills, 1957 2017 Average Annual Return S&P TSX Composite Index 10.32% S&P 500 Index in $CAD 12.10% 7.89% Long Term Gov't of Canada Bonds Canadian Treasury Bills 5.59% 0.00% 2.00% 4.00% 6.00% 8.00% 10.00% 12.00% 14.00% Each bar represents an investment's average return. Figure 10.4 Volatility (Standard Deviation) of S&P/TSX Composite Index, S&P 500 in CAD, Long-Term Government of Canada Bonds, and Government of Canada Treasury Bills, 1957-2017 16.35% Standard Deviation of Returns (%) S&P TSX Composite Index S&P 500 Index in $CAD Long-Term Gov't of Canada Bonds 10.20% Canadian Treasury Bills 3.93% 17.00% 0.00% 5.00% 10.00% 15.00% 20.00%