Consider the following regression model: = B₀ + B₁x₁ + B₁

+ ε.If B₂ > 0,then the parabola will open downward and if B₂ < 0,then the parabola will open downward.

Question

Consider the following regression model: = B₀ + B₁x₁ + B₁ + ε.If B₂ > 0,then the parabola will open downward and if B₂ < 0,then the parabola will open downward.

Quizplus · Accepted Answer

The statement is incorrect. If B₂ > 0, then the coefficient of the quadratic term (x^2) in the model will be negative, causing the parabola to open upward. Conversely, if B₂ < 0, the coefficient of the quadratic term will be positive, causing the parabola to open downward.

Consider the Following Regression Model: = B0 + B1x1

Consider the Following Regression Model: = B₀ + B₁x₁