Title "Price of F33 Bonanza Versus Airframe Hours"; Variable Age; // Age in years Variable Total; // Total hours on airframe Variable Engine; // Hours on current engine Variable Price; // Asking price Parameter Baseprice; // Estimated base price of a new plane Parameter Timedep; // Depreciation for each hour of total use Function Price = Baseprice + Timedep*Total; Plot residual; Data; 1 60 60 188000 2 130 130 174500 4 619 619 175000 4 525 525 162500 3 535 535 169900 9 2800 1390 99500 10 1610 1610 119000 12 938 938 107000 13 1550 120 97500 13 1490 100 95000 13 1894 406 89900 14 2250 350 99500 14 2600 975 87500 15 1500 1000 96500 15 2100 800 83900 18 2480 990 79900 20 1950 40 75000