I've got a factorial design including two factors with unbalanced observations. I was wondering how I can do analysis of variance to test null hypothesis for them in Minitab 16?
Thanks Lakhdar for the response! yep the way you mentioned is the normal way I usually use for my balanced designs, but in this case I have got unbalance design meaning that I have got different number of observations for each factor. I gave it a try with this normal way but dfs and SS came out different with what I've got from GenStat (using ANOVA for Unbalanced design). So I thought there would a specific way to analyse unbalanced designs in Minitab.