Now,try the example again, buteach subgroupis now going to be from a different population(so, the "model",which anova assumes, will be wrong):

SubgroupA: SubgroupB: SubgroupC:

X-bar = 40,sigma = 10 X-bar = 50,sigma = 10
X-bar = 55, sigma = 10

MT B >Erase C1 -C20 MT B >Random 25C1; SUBC>Normal4010. MT B >Random 25C2; SUBC>Normal5010. MT B >Random 25C3; SUBC>Normal5510. MT B >Desc C1 -C3

N 25 25 25

Mean 42.38 53.48 56.31

Max 58.77 73.31 91.67

Median
41.29
53.41
55.05

Q1
38.10
46.04
46.73

T RMean
42.72
53.68
55.87

StDev
9.26
11.46
13.32

SeMean
1.85
2.29
2.66

C1 C2 C3

Min 18.40 29.00 30.91

Q3 50.02 61.79 63.05

C1 C2 C3