My name is Siddharth Appukuttan and i am a research student. I am using Excel tookpak for my data analysis. I have two factor anova, with two independent variables, with an unequal sample size. Whenever I am trying to perform the analysis operation with Anova two factor without replication, a window pops up saying "Input range contains non-numeric data". I don''t understand how to proceed further. Can somebody please help me out with this situation?