And what we're going to do here is just figure out a z score for this, essentially figure out how many standard deviations away from the mean this is. That would be our z score. And then figure out, is the likelihood of getting a standard deviation or that extreme of a result or that many standard deviations away from the mean, is that likelihood more or less than 5%? If it is less than 5%, we're going to reject the null hypothesis. So let's first of all figure out our z score. So we're assuming the null hypothesis, p1 is equal to p2. Our z score, the number of standard deviations that our actual result is away from the mean, the actual difference that we sampled in the last few videos between the men and the women, was 0.051.