Q1: Consider the following information: D1 D2 D3 D4 S1 2500 3700 4900 7500 S25000 3500 5200 8000 S3 540042005000 7600 Note that the PAYOFFS represent COST, determine the best alternative under the following: 1- The optimistic criterion. 2- The conservative/pessimistic criterion. 3. The regret criterion. 4- Draw a decision tree for this problem s- If P(Sj) = 0.2, 0.35 for S1 and S2 respectively, find the best Expected Monetary Value