One of the most important concerns of the manufacturer is to determine the appropriate number of suppliers. Suppose, a factory manager wants to know to work with one or two or three suppliers? Hence, based on hypothesized following information, help factory manager to receive his response. (Draw decision tree)

- Super-event probability is 0.6%

- Unique-event probability is 5%

- Marginal cost of managing an additional supplier is $5,000

- financial loss incurred if a disaster caused all suppliers to be down simultaneously is $20,000,000