Question: 18 pts You have estimated a linear regression model relating Y to X. Your professor says, I think that the relationship between Y and X

18 pts You have estimated a linear regression model relating Y

18 pts You have estimated a linear regression model relating Y to X. Your professor says, "I think that the relationship between Y and X is nonlinear, and the square as well as the cube of X ( x and x3) should be included." How would you test the adequacy of your linear regression? Be detail and specific. Edit View F

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