Hi,
I am currently working on 2^3 design of experiment. After Anova, when I am going further for turkey HSD test for each level of factor interaction,the test is not giving me level interaction properly. double level interaction it is giving. eg. Price (low, high) Quality(ok,good). turkey HSD should give price (low).quality(ok) results. But it is giving price(low,high) quality(ok,good) results. which I am able to interpret. Please help am I wrong somewhere or not able to interpret?please guide.