An airport Baggage Handing Department has evaluated two proposals for baggage delivery conveyor systems. A present worth analysis at i = 15% per year of estimated revenues and costs resulted in PW_A= $460,000 and PW_B= $395,000. In addition to this economic measure, three more attributes were independently assigned a relative importance score from 0 to 100 by the department manager and a senior team supervisor.

Separately, you have used the four attributes to value rate the two proposals on a scale of 0 to 1.0 as shown in the following table. (The economics attribute was rated using the PW values.) 

Select the better proposal using each of the following methods:
(a) Weighted evaluation of the department manager
(b) Weighted evaluation of the team supervisor
(c) Present worth

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Importance Scores Manager Supervlsor Attribute 1. Economics 25 80 35 2. Durability 3. Safety 4. Maintainability 80 30 100 20 90 Value Rating Attribute Proposal A Proposal B 1. Economics 1.00 0.90 2. Durability 3. Safety 4. Maintainability 0.35 0.50 1.00 0.20 0.25 1.00