Consider a supplier selection problem where the five most important criteria are identified as follows.

C1—Risk C2—Delivery time C3—Quality C4—Price C5—Business Performance

a. Using the Borda method and your own preferences, rank the criteria and compute their weights.

b. Suppose 5% of purchasing managers were interviewed and they were asked to rank the above criteria. The summary of their responses are given in Table 5.41.

Determine the weights of the criteria and their rankings based on the sample survey of the purchasing managers, using the Borda method for multiple decision makers discussed in Section 5.3.8. How does their ranking compare with yours?

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TABLE 5.41 Criteria Rankings for Exercise 5.16 Rank 1 2 Criteria C C C C C5 9 3 6 8 4 4 13 3 7 3 3 4 4 11 9 2 4 1 7 8 9 2 4 5 6 21 2 4 17