Question 4. A company wants to select a supplier. There are three criteria that are important in the selection process. The criteria and their pairwise comparison scores are as follows:

There are three suppliers that can provide the products. The pairwise comparison of the suppliers based on each criterion is as follows: Cost: Quality:

Knowledge:

a) Select the best supplier using AHP. b) Calculate the Consistency Index (CI) ONLY for Table 1 (pairwise comparison of criteria).

Cost Quality Knowledge Cost 1.00 0.25 0.14 Quality Knowledge 4.00 7.00 1.00 3.00 0.33L 1.00 Supplier 1 Supplier 2 Supplier 3 Supplier 1 Supplier 2 1.00 6.00 0.17 1.00 0.33 4.00 Supplier 3 3.00 0.25 1.00 Supplier 1 Supplier 2 Supplier 3 Supplier 1 Supplier 2| Supplier 3 I 1.00 10.11 0.14 9 .00 1.00 2.00 7.00 0.50 1.00 Supplier 1 Supplier 2 Supplier 3 Supplier 1 Supplier 2| Supplier 3 I 1.00 0.20 0.13 5 .00 1.00 0.25 8.00 4.00 1.00 Cost Quality Knowledge Cost 1.00 0.25 0.14 Quality Knowledge 4.00 7.00 1.00 3.00 0.33L 1.00 Supplier 1 Supplier 2 Supplier 3 Supplier 1 Supplier 2 1.00 6.00 0.17 1.00 0.33 4.00 Supplier 3 3.00 0.25 1.00 Supplier 1 Supplier 2 Supplier 3 Supplier 1 Supplier 2| Supplier 3 I 1.00 10.11 0.14 9 .00 1.00 2.00 7.00 0.50 1.00 Supplier 1 Supplier 2 Supplier 3 Supplier 1 Supplier 2| Supplier 3 I 1.00 0.20 0.13 5 .00 1.00 0.25 8.00 4.00 1.00