It's almost engineered, so it gives a better estimate of your confidence intervals and all of that when you do have a small sample size. And it looks very similar to a normal distribution. It has some mean. So this is your mean of your sampling distribution still. But it also has fatter tails. And the way I think about why it has fatter tails is when you make an assumption that this is the standard deviation for, well, let me take one more step. So normally what we do is we find the estimate of the true standard deviation.