(c) In a certain experiment, the values of a response y corresponding to six values of...

Transcribed Image Text:

(c) In a certain experiment, the values of a response y corresponding to six values of an independent variable x were observed. A simple linear regression model was fit to the data. The plot of residuals versus fits yielded the following: 15 10 plot of residuals vs fits 5 0 0 10 20 30 40 50 60 70 80 90 100 110 120 130 -5 -10 -15 -20 -25 -30 (i) Comment on this plot. (ii) How would you continue with the modelling and analysis of this data set? (iii) If another model is fit to the data, what measure would you use to compare the two models? (c) In a certain experiment, the values of a response y corresponding to six values of an independent variable x were observed. A simple linear regression model was fit to the data. The plot of residuals versus fits yielded the following: 15 10 plot of residuals vs fits 5 0 0 10 20 30 40 50 60 70 80 90 100 110 120 130 -5 -10 -15 -20 -25 -30 (i) Comment on this plot. (ii) How would you continue with the modelling and analysis of this data set? (iii) If another model is fit to the data, what measure would you use to compare the two models?