A school's art club holds a bake sale on Fridays to raise money for art supplies. Here are the number of cookies they sold each week in the fall and in the spring:

fall

20

26

25

24

29

20

19

19

24

24

spring

19

27

29

21

25

22

26

21

25

25

Find the mean number of cookies sold in the fall and in the spring.
The MAD for the fall data is 2.8 cookies. The MAD for the spring data is 2.6 cookies. Express the difference in means as a multiple of the larger MAD.
Based on this data, do you think that sales were generally higher in the spring than in the fall?