Suppose that Nintendo would like to test the hypothesis that a difference exists in the average age of users of aWii, aPlayStation, or an Xbox console game. The following data represent the age of a random sample ofWii, PlayStation, and Xbox users.

Wii

PlayStation

Xbox

37

26

31

31

21

20

47

24

38

29

24

31

36

25

30

What is the sum of squares between for theseobservations?

A.

575.3

B.

456.8

C.

360.0

D.

509.1