I have 4 variables:
Dependent variable: Feo
Independent variables: Ni & Fe & Categorical factor (hot vs cold)
Feo is a function of Ni & Fe. I want to determine if Feo is affected by hot vs cold (prediction is that Feo is higher if hot).
pretty much this but with an additional independent variable:
can it be done or because there are too many variables it’s hard to determine the effect of cold vs cold?
also, best software/language to use ?