Let's say that I just have 25 data points in each column. Let's say you get 12 minutes, 20 minutes, 25 minutes, and you just keep going. There's 25 data points. Let's just say that there are 12 data points less than 20 minutes and 12 data points more than 20 minutes. In this circumstance, her median time for bus A would be 20 minutes. I just made this number up. In order for this to be eight minutes less than the median time for bus B, the median for bus B, we would have to be 28.