And in the last video, we actually estimated that using a 95% confidence interval for the difference in the proportion of men and the difference in the proportion of women. What I want to do in this video is just to ask the question more directly, or just do a straight up hypothesis test to see, is there a difference? So we're going to make our null hypothesis. Let me just get a clear screen here. Let's make our null hypothesis no difference between how the men and the women will vote. Or another way of viewing it is that the proportion of men who will vote for the candidate is going to be the same as the proportion of women who are going to vote for the candidate. Or another way you could say that is that the difference, P1 minus P2, the true proportion of men voting for the candidate minus the true population proportion of women voting for the candidate, is going to be 0.