Or another way, that the true percentage of teachers who think those computers are good ideas is between. We're 99% confident, we're confident that there's a 99% chance that the true percentage of teachers that like the computers is between 48.8% and 64.8%. Now, that we answered the first part of the question. The second part, how could the survey be changed to narrow the confidence interval, but to maintain the 99% confidence interval? Well, you could just take more samples. If you take more samples, then our estimate of the standard deviation of this distribution will go down, because this denominator will be higher. If that denominator is higher, then this whole thing will go down.