As the temperature increases,an experimental lubricant initially decreases in viscosity (resistance in flow),then increases,then decreases again.Of the first,second,and third polynomial models discussed in this section,which would tend to be most applicable for such data?
What would be the signs of the partial regression coefficient(s)in the model?

Question

Quizplus · Accepted Answer

The Answer of As the temperature increases,an experimental lubricant initially decreases in viscosity (resistance in flow),then increases,then decreases again.Of the first,second,and third polynomial models discussed in this section,which would tend to be most applicable for such data?
What would be the signs of the partial regression coefficient(s)in the model?

As the Temperature Increases,an Experimental Lubricant Initially Decreases in Viscosity