The accompanying data on y 5 normalized energy (Jym2)and x 5 intraocular pressure (mmHg)

Chapter 13, Problem 4

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The accompanying data on y 5 normalized energy (Jym2)and x 5 intraocular pressure (mmHg) appeared in a scatterplotin the article Evaluating the Risk of Eye Injuries:Intraocular Pressure During High Speed ProjectileImpacts (Current Eye Research, 2012: 4349); an estimatedregression function was superimposed on the plot.x 2761 19764 25713 3980 12782 19008y 1553 14999 32813 1667 8741 16526x 20782 19028 14397 9606 3905 25731y 26770 16526 9868 6640 1220 30730a. Here is Minitab output from fitting the simple linearregression model. Does the model appear to specifya useful relationship between the two variables?Predictor Coef SE Coef T PConstant 25090 2257 22.26 0.048Pressure 1.2912 0.1347 9.59 0.000S 5 3679.36 RSq 5 90.2% RSq(adj) 5 89.2%b. The standardized residuals resulting from fitting thesimple linear regression model (in the same order asthe observations) are .98,21.57, 1.47, .50,2.76,2.84,1.47,2.85,21.03,2.20, .40, and .81. Construct aplot of e* versus x and comment. [Note: The modelfit in the cited article was not linear.]