The following is regression data to
predict customer spending for a catalog company...
Based on the data below....the amount spent is the response variable while the others (ie: closeness to other stores stores nearby, salary, children, catalogs) are predictor variables
My question is: how do I decide whether the prediction of Amount Spent is based on the mean or median values of the predictor variables in the final model?? I'm sure that I have to determine for each variable, whether the mean or median should be used and am a little confused about which way to go??? ANY HELP WOULD BE APPRECIATED!!!!!!!