Assignment:
As the temperature increases, an experimental lubricant initially decreases in viscosity (resistance to flow), then increases, then decreases again. Of the polynomial models discussed, which one would tend to be most applicable for such data? What would be the signs of the partial regression coefficient(s) in the model?
Your answer must be, typed, double-spaced, Times New Roman font (size 12), one-inch margins on all sides, APA format and also include references.