Problem $2.$ A business is about to purchase a new personal computer. Three objectives are important in

determining which computer should be purchased: cost, user$-$friendliness, and software availability. The

pairwise comparison matrix for these objectives is as follows:

$(1)(2)(3)$

Three computers are being considered for purchase. The performance of each computer with regard to

each objective is indicated by the following pairwise comparison matrices.

For cost $($low cost is good, high cost is bad!$)$:

For user$-$friendliness:

For software availability:

Which computer should be purchased?

Check the pairwise comparison matrices for consistency.