The Pikes Peak International Hill Climb is also known as The Race to the Clouds. This 12.42-mile race up Pikes Peak in Colorado features over 156 turns, grades of 7%, and a finish line at 14,110 feet....

The Pikes Peak International Hill Climb is also known as The Race to the Clouds. This 12.42-mile race up Pikes Peak in Colorado features over 156 turns, grades of 7%, and a finish line at 14,110 feet. Independent random samples of two classes of cars in the 2013 race were obtained, and the speed (in mph) for each was recorded. The summary statistics are given in the following table.