The scatterplot shown below represents a typical shape of a cubic regression model y = β₀ + β₁x + β₂x² + β₃x³ + ε. Which of the following is true about values of the regression coefficients? A) β₁ 0; β₂ 0; β₃ 0 B) β₁ 0; β₃ 0 C) β₁ 0; β₂ 0

Question

The scatterplot shown below represents a typical shape of a cubic regression model y = β₀ + β₁x + β₂x² + β₃x³ + ε. Which of the following is true about values of the regression coefficients? A) β₁ > 0; β₂ > 0; β₃ > 0 B) β₁ < 0; β₂ > 0; β₃ > 0 C) β₁ < 0; β₂ < 0; β₃ > 0 D) β₁ > 0; β₂ < 0; β₃ > 0

Quizplus · Accepted Answer

The Answer of The scatterplot shown below represents a typical shape of a cubic regression model y = β₀ + β₁x + β₂x² + β₃x³ + ε. Which of the following is true about values of the regression coefficients? A) β₁ > 0; β₂ > 0; β₃ > 0 B) β₁ < 0; β₂ > 0; β₃ > 0 C) β₁ < 0; β₂ < 0; β₃ > 0 D) β₁ > 0; β₂ < 0; β₃ > 0

The Scatterplot Shown Below Represents a Typical Shape of a Cubic