Tammy Monahan is considering the purchase of a home entertainment center. The product attributes and weights she plans to consider are:

portability .1

sound projection .6

warranty .3

Tammy rated the brands as follows:

portability sound projection warranty

Brand A 6 8 7

Brand B 9 6 8

Brand C 5 9 6

Conduct a quantitative product evaluation rating for each brand. What other factors is Tammy likely to consider when making her purchase