The mean weight loss for group 1, let me make it very clear. The low-fat group, the mean weight loss was 9.31 pounds. Our sample mean for group 1 is 9.31 pounds, with a sample standard deviation of 4.67. Both of these are obviously very easy to calculate from the actual data. For our control group, the sample mean is 7.40 pounds for group 2. Our sample mean here for the control is 7.40, with a sample standard deviation of 4.04 pounds. If we look at it superficially, it looks like the low-fat group lost more weight, just based on our samples, than the control group.