Regresion Lineal Multiple Ejercicios Resueltos A Mano -

β1 = Σ(X1 - X1̄)(Y - Ȳ) / Σ(X1 - X1̄)^2 = 60 / 10 = 6 β2 = Σ(X2 - X2̄)(Y - Ȳ) / Σ(X2 - X2̄)^2 = -55 / 10 = -5,5

β2 = 40.333333 / 84.333333 ≈ 0.478

Sub into (2): [ 110 = 10(9.5 - 2.5b_1 - 3.5b_2) + 30b_1 + 40b_2 ] [ 110 = 95 - 25b_1 - 35b_2 + 30b_1 + 40b_2 ] [ 110 - 95 = 5b_1 + 5b_2 ] [ 15 = 5(b_1 + b_2) \Rightarrow b_1 + b_2 = 3 \quad (A) ] regresion lineal multiple ejercicios resueltos a mano

Ȳ = 65.000 X̄1 = 37,5 X̄2 = 8,5