And the mean of the population is actually the true population proportion.

而人口的均值实际上就是真实的人口比例。

So if we say our population proportion, we're going to assume this is true.

所以如果我们说我们的人口比例，我们会假设这是真的。

Well, if we assume that the true population proportions are actually the same between men and women.

好吧，如果我们假设真正的人口比例在男性和女性之间实际上是相同的。

And this is our best estimate of this consistent population proportion that is true of both men and women.

这是我们对这种一致的人口比例的最佳估计，对男性和女性都是如此。

So we are 99% confident that the true population proportion is between these two numbers.

因此，我们有 99% 的把握认为真实的人口比例介于这两个数字之间。

So if P1 is equal to P2, we can just represent them as just some true population proportion.

所以如果 P1 等于 P2，我们可以将它们表示为一些真实的人口比例。

Or you could say that you're confident that the population proportion is within 0.08 of your sample mean.

或者您可以说您确信总体比例在样本均值的 0.08 以内。

Or that P1 minus P2, the proportion of men voting minus the proportion of women voting, the true population proportions, do not equal 0.

或者P1减去P2，男性投票的比例减去女性投票的比例， 真实的人口比例， 不等于0。

So the highest population proportion that's within our null hypothesis that will maximize the probability of getting this is actually if we are right at 30%.

因此，在我们的原假设中，如果我们是 30% 的，那么将最大化获得此概率的最高人口比例实际上是正确的。

And in that assumption we're going to have to pick a population proportion or a population mean-- we know that for Bernoulli distributions do the same thing.

在那个假设中，我们将不得不选择一个人口比例或一个人口平均数——我们知道对于伯努利分布做同样的事情。

So just to refresh ourselves we're going to assume a population proportion of 0.3, and if we just think about the distribution-- sometimes it's helpful to draw these things, so I will draw it.

所以为了提神醒脑， 我们假设人口比例为 0.3，如果我们只考虑分布——有时画出这些东西会很有帮助， 所以我会画出来。

But our best estimate of that, and that's why we call it confident, we're confident that the real mean or the real population proportion, is going to be in this interval.

但我们对此的最佳估计， 这就是为什么我们称之为有信心，我们有信心真正的平均数或实际人口比例， 将在这个区间内。

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.

或者换一种说法，P1 减去 P2 的差值， 投票给候选人的男性的真实比例减去投票给候选人的女性的真实人口比例将为 0。