So our z-score, you could even view it as a z-statistic. It's being derived from these other sample statistics. So our z-statistic, how far are we away from the mean? Well, the mean is 1.2. And we are at 1.05, so I'll put that less, just so that it'll be a positive distance. So that's how far away we are. And if we want it in terms of standard deviations, we want to divide it by our best estimate of the sampling distributions standard deviation, which is this 0.05.