I'm still new in the world of GIS.
I'm currently doing some zonation with "test points." Each has its own coordinates and "P" value. I want to make contours of these data, to divide the whole area into three zones (Yellow zone if P <= 5, Orange zone if 5 < P <= 15, and Red zone if P > 15).
Please guide me step to step on how to make this with ArcGIS 10 (I don't have a license for 3D Analyst).