The 2010 Indianapolis 500 was a very competitive race with 1 minute separating the time between the winning car and fourteenth car to finish the race. The mean finishing time of cars in the Indy 500 was 186.15 minutes with a standard deviation of 0.359 minute. The winning car, driven by Dario Franchitti, finished in 185.62 minutes. The 2010 Indy Grand Prix of Sonoma was also very competitive with 25 seconds separating the time between the winning car and the fifteenth car to finish the race. The mean finishing time of the cars finishing the Sonoma race was 112.8 minutes with a standard deviation of 0.131 minute. The winning car, driven by Will Power, finished in 112.57 minutes. Who had the more convincing victory?