Two random samples of 25 people were asked how many 12-ounce cans of soda they consume each week. The first sample contained both males and females, aged 12-19. The second sample contained both males and females, aged 20-39. The results are shown in the table below. Sample #1 16 11 9 12 11 10 10 8 15 0 2 15 14 7 11 5 14 20 3 11 13 7 0 5 21

Sample #2 18 14 0 7 5 7 10 7 6 9 12 3 14 4 11 16 0 10 9 5 0 16 11 2 4

The mean of the teenage group is 2 cans ___ than the mean of the adult group.
The difference between the two means is about ___ the MAD of either group.