Exercise 11-9 presents data on wear volume y and oil
Chapter 11, Problem 11-57(choose chapter or problem)
Exercise 11-9 presents data on wear volume y and oil viscosity x. (a) Calculate R2 for this model. Provide an interpretation of this quantity. (b) Plot the residuals from this model versus and versus x. Interpret these plots. (c) Prepare a normal probability plot of the residuals. Does the normality assumption appear to be satisfied?
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