Consider the payoff matrix below with actions, states of nature, and prior probabilities. 0.20 0.30 0.50 S1 S2 S3 a1 az 1 a3 4 4 -1 gnore the prior probabilities. Which action should be taken based on the Hurwicz criterion with an index of optimism 0.6? O only a3 O none since the Hurwicz criterion does not apply O only a2 O only a1

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Title: Decision-Making Using the Hurwicz Criterion

**Payoff Matrix and Decision Analysis**

Consider the payoff matrix below featuring actions, states of nature, and prior probabilities:

|               | 0.20 (s₁) | 0.30 (s₂) | 0.50 (s₃) |
|---------------|-----------|-----------|-----------|
| **a₁**        | 3         | 5         | 2         |
| **a₂**        | 1         | 6         | 4         |
| **a₃**        | 4         | 4         | -1        |

**Decision Problem:**

*Goal:* Identify the optimal action using the Hurwicz criterion with an optimism index (α) of 0.6. The Hurwicz criterion is a decision rule in which a linear combination of the best and worst payoff for each action is calculated, using the given index of optimism. Ignore prior probabilities when making your decision.

**Steps to Apply the Hurwicz Criterion:**

1. **Calculate for Each Action:**
   - Maximum Payoffs: 
     - a₁: max(3, 5, 2) = 5
     - a₂: max(1, 6, 4) = 6
     - a₃: max(4, 4, -1) = 4
   - Minimum Payoffs:
     - a₁: min(3, 5, 2) = 2
     - a₂: min(1, 6, 4) = 1
     - a₃: min(4, 4, -1) = -1

2. **Calculate Hurwicz Criterion Value for Each Action:**
   - a₁: [0.6 * 5] + [0.4 * 2] = 3 + 0.8 = 3.8
   - a₂: [0.6 * 6] + [0.4 * 1] = 3.6 + 0.4 = 4.0
   - a₃: [0.6 * 4] + [0.4 * (-1)] = 2.4 - 0.4 = 2.0

**Decision:**

Choose the action with the highest value according to
Transcribed Image Text:Title: Decision-Making Using the Hurwicz Criterion **Payoff Matrix and Decision Analysis** Consider the payoff matrix below featuring actions, states of nature, and prior probabilities: | | 0.20 (s₁) | 0.30 (s₂) | 0.50 (s₃) | |---------------|-----------|-----------|-----------| | **a₁** | 3 | 5 | 2 | | **a₂** | 1 | 6 | 4 | | **a₃** | 4 | 4 | -1 | **Decision Problem:** *Goal:* Identify the optimal action using the Hurwicz criterion with an optimism index (α) of 0.6. The Hurwicz criterion is a decision rule in which a linear combination of the best and worst payoff for each action is calculated, using the given index of optimism. Ignore prior probabilities when making your decision. **Steps to Apply the Hurwicz Criterion:** 1. **Calculate for Each Action:** - Maximum Payoffs: - a₁: max(3, 5, 2) = 5 - a₂: max(1, 6, 4) = 6 - a₃: max(4, 4, -1) = 4 - Minimum Payoffs: - a₁: min(3, 5, 2) = 2 - a₂: min(1, 6, 4) = 1 - a₃: min(4, 4, -1) = -1 2. **Calculate Hurwicz Criterion Value for Each Action:** - a₁: [0.6 * 5] + [0.4 * 2] = 3 + 0.8 = 3.8 - a₂: [0.6 * 6] + [0.4 * 1] = 3.6 + 0.4 = 4.0 - a₃: [0.6 * 4] + [0.4 * (-1)] = 2.4 - 0.4 = 2.0 **Decision:** Choose the action with the highest value according to
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