(This was a report of a student "experiment", and the test group was altogether too small to make any serious conclusions. I don't mistake this for Science.)
Abstract
In this
study a test group's trash to recycling ratio is measured to evaluate
the current reported efficiency of the University of Arizona's
Recycling and Waste Management Program, and to test the estimated
potential maximum recycling goal of the program. The experiment ran
for one week, and included four students. The data was compared to
one month of published waste management figures.