1. The problem statement, all variables and given/known data I've put together a set of data containing hardness, cold work, stress and dimensions of aluminum and brass test samples. Before I distribute to my group, I wanted to ensure that it looked okay (units, graphs, etc.). I needed to provide three graphs for each material: Hardness vs Cold Work Hardness vs Stress Stress vs Cold Work 3. The attempt at a solution I have attached my excel file for everyone to view. Thank you very much.