So this is going to be 2.776 times 1.64 divided by the square root of five. And we get a margin of error of approximately 2.036. So this is going to be 6.8 plus or minus 2.036. It's approximately equal to that, where this is our margin of error. And if we actually wanted to write out the interval, we could just take 6.8 minus this and 6.8 plus that. So let's do that again with the calculator. So 6.8 minus 2.036 is equal to 4.764.