Need help for ANOVA problem solving


New Member
There are three main brands of a certain powder. A set of 120 sample values is examined and found to be allocated among four groups ( A, B , C and D) and three brands ( I II and III ) as shown here under:
Brands Groups
I 0 3 8 15
II 5 8 13 6
III 8 19 11 13
Is there any significant difference in brands preference? Answer at 5% level, using one-way ANOVA.

Could some one please help me solve this problem?


Active Member
Please send whoever gave you this problem over here, so we can explain to them why it is not a one-way ANOVA problem.


Active Member
The question is unclear, and the data, whatever they are supposed to represent, appear inappropriate for 1-way ANOVA. I suggest you ask your professor how he would solve the problem.