3. Suppose that the Dow Jones Industrial Average went up 149.82 points. The following table shows the stock price changes for a sample of 12 companies on that day. Price Change Price Change Company $ Company $ Aflac 0.81 John & John. 1.46 Bank of America 0.05 Loews Cp 0.92 Cablevision 0.41 Nokia 0.21 Diageo 1.32 SmpraEngy 0.97 Flour Cp 2.37 Sunoco 0.52 Goodrich 0.4 Tyson Food 0.22 Provide 95% confidence interval estimates of the population variance and the population standard deviation