And in this case we are only going to consider the area in this one tail. So this right here would be a one-tail test, where we only care about one direction below the mean. And if you look at the one-tail test, this area over here, we saw last time that both of these areas combined are 0.3%. But if you're only considering one of these areas, if you're only considering this one over here, it's going to be half of that, because the normal distribution is symmetric. So it's going to be 0.13%. So this one right here is going to be 0.15%. Or if you were to express it as a decimal, this is going to be 0.0015.