Question: After buying a computer system, Ben Cheng must decide whether to purchase (1) a complete maintenance (or service) policy at a cost of P500, which
After buying a computer system, Ben Cheng must decide whether to purchase (1) a complete maintenance (or service) policy at a cost of P500, which would cover all maintenance costs; (2) a partial maintenance policy at a cost of P300, which would cover some of the costs of maintenance; or (3) no maintenance policy. The consequences, costs, and probabilities are given in the following table:
| MAINTENANCE REQUIRED | NOT REQUIRED | |
| No Service Agreement | 3,000 | 0 |
| Partial Service Agreement | 1,500 | 300 |
| Complete Service Agreement | 500 | 500 |
| Probabilities | 0.2 | 0.8 |
Answer the following questions:
(a) What do you recommend?
(b) If the probability of needing maintenance is 0.8 (instead of 0.2) and the probability of not needing maintenance is 0.2, how does this change Ben's decision?
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