4. A company is about to select a vendor for the outsourcing of all of its IT requirements. It has identified four criteria that are crucial to the selection. These criteria, and their importance weights, are contained in the table below. Three firms A, C, and E, have indicated that they are interested in willing this work. The company has scored each of the three candidates on these criteria, using a 1 to 10 scale, where 10 is best. Candidate A scored, in order,7,7,7, and 5 on the four criteria. Candidate C scored 9, 4, 8, and 6. Candidate E scored 5, 10, 10, and 7. Criterion Engineering expertise Financial and managerial strength Integrity Staff experience and qualifications Weight 0.40 0.20 0.15 0.25 a. On the basis of weighted ratings, which candidate vendor is indicated as the most favorable to be selected? b. Explain the basis of the decision made in part a. Not actually being certain which criterion is more important than another or by how much, select the most favorable vendor without weighting the ratings