But in this case we care about means that are lower. So now we care about the probability of a result lower than 1.05 seconds. That's the same thing as getting a sample from the sampling distribution that's more than three standard deviations below the mean. 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.