Reconsider the model for the automobile purchase data from Problem 13.5, part a. Construct plots of the deviance residuals from the model and comment on these plots. Does the model appear satisfactory from a residual analysis viewpoint?

Problem 13.5

A study was performed to investigate new automobile purchases. A sample f 20 families was selected. Each family was surveyed to determine the age of their oldest vehicle and their total family income. A follow-up survey was conducted 6 months later to determine if they had actually purchased a new vehicle during that time period ( y=1$\mathrm{????}=1$ indicates yes and y=0$\mathrm{????}=0$ indicates no). The data from this study are shown in the following table.

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Income, x Age, X2 y Income, x Age, x2 y 45,000 40,000 60,000 50,000 55,000 50,000 35,000 48,000 65,000 53,000 1 2432257222 0 37,000 0 31,000 40,000 1 75,000 0 43,000 1 49,000 1 37,500 100 71,000 34,000 27,000 5742924156 1 1 1 1 0 1 0