The t distribution is kind of an engineered version of the normal distribution using t statistics. 2.98 divided by the square root of our sample size. We have 10 samples, so it's divided by the square root of 10. This value right here, let me get the calculator out just to get a value in place there. This is going to be 17.17 minus 20, close parentheses, divided by 2.98 divided by the square root of 10, and then close parentheses. It is almost exactly negative 3. Our t statistic is almost exactly negative 3.