It's actually to the right. Let's just remind ourselves what she did here because the first time you try to process this, it can seem a little bit daunting. In her experiment, let me write this down, experiment, the car alarm outside, which you probably, hopefully, are not hearing. It's actually a surprisingly pleasant-sounding car alarm. It sounds like a slightly obnoxious bird. Anyway, her experiment is, the way I described it, 25 days she would take bus A, 25 days she took bus B, and she would record all the travel times. Let's say that I just have 25 data points in each column.