The following table presents the average delay in minutes for departures and arrivals of domestic flights at O'Hare Airport in Chicago for selected years. Average Delay in Departures Average Delay in Arrivals 63.7 72.4 57.9 64.4 56.7 64.4 59.4 68.5 58.4 67.4 60.7 70.8 Bureau of Transportation Statistics 11. Compute the least-squares regression line for predicting the delay in arrival time from the delay in departure time. 12. Use the least-squares regression line from #20 to predict the average delay in arrival time in a year when the average delay in departure time is 58.5 minutes. 13. If the average delay in departure times differs by 2 minutes from one year to the next, by how much would you predict the average delay in arrival times to change