So that this whole area right here is 5%. And that's because that's what our significance level is. Anything that has a lower than 5% chance of occurring, for us, will be validation to reject our null hypothesis. Or another way of thinking about it, if that area is 5%, this whole area right over here is 95%. And once again, this is a one-tailed test, because we only care about values greater than this. Z values greater than that will make us reject the null hypothesis. And to figure out this critical z value, we can literally just go to a z table.