What we're going to do in this video is dig a little bit deeper into confidence intervals. In other videos, we compute them, we even interpret them, but here we're gonna make sure that we are making the right assumptions so that we can have confidence in our confidence intervals or that we are even calculating them in the right way or in the right context. So just as a bit of review, a lot of what we do in confidence intervals is we are trying to estimate some population parameter. Let's say it's the proportion. Maybe it's the proportion that will vote for a candidate. We can't survey everyone, so we take a sample. And from that sample, maybe we calculate a sample proportion.