There's a 95% chance that the true mean is in that interval. So let me write this down. I want to find an interval such that I am reasonably confident, and I'm putting this kind of touchy-feely language over here, because it's all around the fact that I don't know for a fact that this standard deviation is 0.05. I'm just estimating. But I'm reasonably confident that there is a 95% chance that the true mean of the population, which is the same thing as the proportion of the population who are going to vote for person B, or the proportion of the population that are going to be a 1. So this is also, we just have to remember, that mu is equal to p, that there's a 95% chance that the true p is in that interval. And actually, since I've already gone 14 minutes into this video, I'm going to pause this video.