I am trying to use multiple linear regression to predict the amount that a particular user will spend in a particular time frame on a particular site. Part of the problem is that there are very few purchasers relative to non purchasers. The other problem is my lack of great features.
You can see below my predictions vs. actual customer spend. Even though the model does not look good, it still has some value as is.
I am wondering if there are any recommended techniques for working with linear regression with this type of data?