Distance. A bus company wants to purchase new buses and decides to choose between two sellers. Before their purchase, they conduct an analysis on the buses from these two sellers (Seller 1 and Seller 2) by testing the average distance

(in km) that the buses can travel with 16 liters of fuel.

The average distance traveled by the buses from the two sellers are shown in the back-to-back stem-and-leaf display as follows. Do these results suggest that Seller 1’s buses can travel more distance? Test an appropriate hypothesis, and state your conclusion.

Seller 1 Seller 2 2 3 9 19 0 0 1 4 3 3 4 9 9 20 1 2 5 6 8 0 0 0 1 3 5 5 21 2 5 5 7 7 8 9 3 5 6 6 6 9 22 4 5 8 9 23 1