Example: Ti 1 2 3 4 yi 3.6 5.2 6.8 8.8 Model: y = arecr Iny = Ina + blax + cr. Let Y = Iny, ag = Ina, a = b, x1 = Inx, a2 = c, and 12 = r, then we have Y = do + aid1 + a212. 0 0.6931 1.0986 1.3863 $2.1 2 3 4 Yi 1.2809 1.6487 1.9169 2.1748 Cri = 3.1781, _x2 = 10, Exi = 3.6092, Er; = 30, Emi, Tai = 10.2273, C Y; = 7.0213, _ x1, Y, = 6.2636, _ x2 Y, = 19.0280. n = 4. M MM- $1,i 12.iT1,i a1 T2,i M a2 25 4 3.1781 10 7.0213 3.1781 3.6092 10.2273 = 6.2636 10 10.2273 30 a2 19.0280 [ao a1 a2] = [7.0213 6.2636 19.0280]' a = 200 = 1.2332, b = a1 = -1.4259, c = a2 = 1.0505, and y = arect = 1.2332 . x-1.4259 . 1.0505rn 3.178054 10 7.021267 3.178054 3.609214 10.22731 6.263564 10 10.22731 30 19.02803 4.323286 8.146282 -4.21825 8.146282 23.5052 -10.7286 -4.21825 -10.7286 5.096903 a0 1.114795 a1 0.279618 a2 0.167345