Astudent was performing an experiment that compared a new high protein food to the old food for pigs. he found the mean weight gain for subjects consuming the new food to be 12.8 pounds with a standard deviation of 3.5 pounds. later he realized that the scale was out of calibration by 1.5 pounds (meaning that the scale weighed items 1.5 pounds too much). what should the summary measures, mean and standard deviation, be for the subjects consuming the new food?