So they took a sample of 200 residents to test the null hypothesis, is that the unemployment rate is the same as the national one versus the alternative hypothesis, which is that the unemployment rate is not the same as the national, where P is the proportion of residents in the town that are unemployed. The sample included 22 residents who were unemployed. Assuming that the conditions for inference have been met, and so that's the random, normal, and independence conditions that we've talked about in previous videos, identify the correct test statistic for this significance test. So let me just, I like to rewrite everything just to make sure I've understood what's going on. We have a null hypothesis that the true proportion of unemployed people in our town, that's what this P represents, is the same as the national unemployment. And remember, a null hypothesis tends to be the no news here, nothing to report, so to speak. And we have our alternative hypothesis that no, the true unemployment in this town is different, is different than 8%.