Lean production processes focus on reducing all of the following except: utilizing people to their full potential, defects. waiting. overproduction. QUESTION 38 Barkley Company sells two products, red cups and black mugs. Barkley predicts that it will sell 2100 red cups and 600 black mugs in the next period. The unit contribution margins for red cups and black mugs are $2.70 and $3.60, respectively. What is the weighted average unit contribution margin? $2.90 $3.73 $0.80 $9.45