a 1. (50 points) (This problem is similar to problem 4.0.2 in notes). Suppose that a decision maker faced with four decision alternatives and four states of nature develops the following profit payoff table: State of Nature 91 S293 S4 di 11 13 | 10 | 11 Decision Alternative d2 9 10 12 10 12 10 dz 12 10 139 da 8 9 14 13 1. If the decision maker knows nothing about the probabilities of the fours states of nature, what is the recommended decision using the optimistic, conservative, and minimax regret approaches? 2. Which approach do you prefer? Explain. Is establishing the most appropriate approach before analyzing the problem important for the decision maker? Explain. 3. Assume that the payoff table provides cost rather than profit payoffs. What is the recommended decision using the optimistic, conservative, and minimax regret approaches