d) Cathy carefully examined the four attributes and narrowed down the most important attributes for her as the life span and price. She is willing to pay up to $950 for an extra year of life span. Calculate K_(L) and K_(P) and recommend which car she would select from A, B, or C? Why?
Now you need to create a Hypothetical object, Let's say "G."
Now select a base object, Let's pick "A."
So, Price of G = 8500 + 950 = 9450 and Life Span = 6 + 1 = 7.
U_(L)(7) = (7 - 6) / (16 - 6) = 0.10,
U_(P)(9450) = (9450 - 21000) / (8500 - 21000) = 0.924.
Cathy is now indifferent between "A" and "G."
Can you explain where 0.76 came from?
EU(A) = EU(G)
K_(P) = K_(L)(0.1) + K_(P)(0.924)
K_(L) = K_(P)(0.76)
K_(P) = 0.568
K_(L) = 0.432
EU(A) = (0 x 0.432) + (1 x 0.568) = 0.568
EU(B) = (0.8 x 0.432) + (0.4 x 0.568) = 0.573
EU(C) = (1 x 0.432) + (0 x 0.568) = 0.432
Car "B" would be chosen because EU(B) > EU(A) and EU(B) > EU(C).