We want to be confident that there's a 95% chance that this thing right here-- remember, when we took the two sample proportions and took their difference, it's like taking a sample from the sampling distribution of the statistic.

我们想要确信这件事有 95% 的可能性——请记住，当我们采用两个样本比例并计算它们的差异时，这就像从统计数据的抽样分布中抽取样本一样。