Group A: 3, 10, 14, 26, 28, 29, 32, 45, 56, 80
Group B: 5, 6, 10, 16, 18, 19, 20, 22, 24, 27
Find the mean of group A and B (tenth) and find the difference.
Mean of Group A:
(3 + 10 + 14 + 26 + 28 + 29 + 32 + 45 + 56 + 80) / 10 = 307 / 10 = 30.7
Mean of Group B:
(5 + 6 + 10 + 16 + 18 + 19 + 20 + 22 + 24 + 27) / 10 = 167 / 10 = 16.7
Difference:
30.7 - 16.7 = 14
The difference between the mean of Group A and Group B is 14.