ITPEC IP April 2022 Question 97
The table below shows the evaluated scores of the proposals of four (4) vendors from the viewpoints of management, technology, and price. When each score of the management viewpoint, technology viewpoint, and price viewpoint is weighted, and the vendor with the highest total score is selected as the supplier, which of the following vendors is selected?
Explanation
Vendor A, with 33 points — multiply each rating by its weight and add them up.
Weights are 2 for management, 3 for technology and 5 for price:
- •Vendor A: 2 × 2 + 3 × 3 + 5 × 4 = 4 + 9 + 20 = 33
- •Vendor B: 2 × 4 + 3 × 4 + 5 × 2 = 8 + 12 + 10 = 30
- •Vendor C: 2 × 3 + 3 × 2 + 5 × 4 = 6 + 6 + 20 = 32
- •Vendor D: 2 × 3 + 3 × 3 + 5 × 3 = 6 + 9 + 15 = 30
Answer (a)
Why not others:
- •(b) Vendor B — has the highest unweighted total, 4 + 4 + 2 = 10, but its weak price rating costs it most under the heaviest weight, 30 points
- •(c) Vendor C — matches A on price but its low technology rating leaves it at 32, one point behind
- •(d) Vendor D — scores 3 on everything, which gives only 30
Key rule: In a weighted evaluation, the criterion with the largest weight dominates; always apply the weights before comparing totals.
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