The following table shows the number of hours some high school students in two cities spend texting each week: City A

9

27

17

24

21

12

25

25

18

City B

6

20

26

15

23

25

14

14

11

Part A: Create a five-number summary and calculate the interquartile range for the two sets of data. (5 points)
Part B: Are there any outliers present for either data set? Justify your answer mathematically. (5 points)