A Major Hardware Store Chain Has Three Large Stores in the City.Random

Multiple Choice

A major hardware store chain has three large stores in the city.Random samples of the daily sales of the three stores (in $1,000s) are shown below: At a significance level of 5%, you use the sample data to test the null hypothesis that average sales for the three populations represented here are the same,
What is the between group sum of squares for the test?

A) 6
B) 12
C) 22
D) 24