Problem 4 Supplement A: The demand for a customized knee implants continues to increase at a orthopedic hospital. The management is evaluating three different alternatives to meet increasing demand: purchase of one or two 3D printers and the related software or outs a manufacturer. A consultant's report indicates a 0.20 probability that demand will be l probability that demand will be moderate, and 0.30 probability that demand will be hig Potential profits/losses for different demand levels are presented in the below table. Payoff: Profit (in thousands) for Demand Levels Alternative Low Moderate High Buy One 3D Printer - 20 75 100 Buy One 3D Printer - 45 50 135 Outsource 10 25 60 a) Draw a complete decision tree for this problem. Clearly present the decision an nodes, the associated probabilities, and the payoffs. Page 147 Example shows decision tree. b) Which alternative should the management choose to achieve the highest expect