Consider the data in the following table Based on these data, estimate the following regressions Y i Icirc plusmn 1 Icirc plusmn 2 X 2i u 1i Y i Icirc raquo 1 Icirc raquo 3 X 3i u 2i Y i Icirc sup2 1 Icirc sup2 2 X 2i Icirc sup2 3 X 3i u i Estimate only the coefficients and not the standard errors a Is Icirc plusmn 2 Icirc sup2 2 Why or why not b Is Icirc raquo 3 Icirc sup2 3 Why or why not What important conclusion do you draw from this exercise X2 3 8 3

Question: Consider the data in the following table. Based on these data, estimate the following regressions: Y i = Î± 1 + Î± 2 X 2i

Consider the data in the following table.

X2 Хз 3 8. -3

Based on these data, estimate the following regressions:
Y_i = Î±₁ + Î±₂X_2i + u_1i
Y_i= Î»₁ + Î»₃X_3i + u_2i
Y_i= Î²₁ + Î²₂X_2i + Î²₃X_3i + u_i
Estimate only the coefficients and not the standard errors.
a. Is Î±₂ = Î²₂? Why or why not?
b. Is Î»₃ = Î²₃? Why or why not?
What important conclusion do you draw from this exercise?

X2 3 8. -3

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