Alternative locations for an advanced wastewater recycling plant are being evaluated using four attri­butes identified as attributes 1, 2, 3, and 4 with weights of 0.4, 0.3, 0.2, and 0.1, respectively. If the value rating scale is from 1 to 10, and the ratings are 3, 7, 2, and 10 for attributes 1, 2, 3, and 4, respectively, the weighted attribute measure R is closest to: (choose one)

Question

(a) 3.7
(b) 3.9
(c) 4.0
(d) 4.7

Answer 1

R = 0.4(3) + 0.3(7) + 0.2(2) + 0.1(10)
= 4.7

Answer is (d) 4.7