So some interval around the mean that encapsulates 95% of the area. For t distribution, you use a t table. And I have a t table ahead of time right over here. And what you want to do is use the two-sided. You want to use a two-sided row for what we're doing right over here. And the best way to think about it is that we're symmetric around the mean. And that's why they call it two-sided.