options nodate nonumber ps=2000; proc reg data=ncaa; model y=x1-x19/selection=backward sls=1E-40; run; Output follows. Summary with full sequence is a the bottom. The SAS System The REG Procedure Model: MODEL1 Dependent Variable: y avg_grad Number of Observations Read 97 Number of Observations Used 94 Number of Observations with Missing Values 3 Backward Elimination: Step 0 All Variables Entered: R-Square = 0.8563 and C(p) = 20.0000 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 19 20679 1088.36333 23.21 <.0001 Error 74 3469.96942 46.89148 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -31.42637 19.67027 119.69101 2.55 0.1144 x1 0.03338 0.06308 13.13142 0.28 0.5983 x2 2.56147 0.66142 703.25895 15.00 0.0002 x3 0.23462 0.09024 316.95185 6.76 0.0113 x4 0.83979 0.21243 732.81433 15.63 0.0002 x5 0.28254 0.09860 385.04781 8.21 0.0054 x6 0.15417 0.09808 115.85286 2.47 0.1203 x7 -2.39179 1.13445 208.43562 4.45 0.0384 x8 -0.57169 0.30788 161.67933 3.45 0.0673 x9 2.52743 1.11686 240.13565 5.12 0.0266 x10 -0.00022573 0.00022455 47.38536 1.01 0.3181 x11 0.13088 0.18531 23.39074 0.50 0.4822 x12 -0.45036 0.34093 81.82271 1.74 0.1906 x13 0.08823 0.07356 67.45552 1.44 0.2342 x14 -0.13532 0.35122 6.96082 0.15 0.7011 x15 -4.78982E-7 5.283772E-7 38.53408 0.82 0.3676 x16 0.01673 0.13710 0.69839 0.01 0.9032 x17 -0.07105 0.08521 32.60796 0.70 0.4070 x18 -0.06991 0.07079 45.72924 0.98 0.3266 x19 0.01230 0.06910 1.48517 0.03 0.8592 Bounds on condition number: 8.2144, 1295.2 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 1 Variable x16 Removed: R-Square = 0.8563 and C(p) = 18.0149 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 18 20678 1148.78916 24.82 <.0001 Error 75 3470.66781 46.27557 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -30.54141 18.16443 130.82375 2.83 0.0968 x1 0.03401 0.06246 13.71783 0.30 0.5877 x2 2.57257 0.65081 723.06010 15.63 0.0002 x3 0.23267 0.08824 321.76439 6.95 0.0102 x4 0.83654 0.20937 738.74115 15.96 0.0001 x5 0.28196 0.09783 384.36160 8.31 0.0052 x6 0.15615 0.09609 122.20492 2.64 0.1083 x7 -2.38246 1.12441 207.75616 4.49 0.0374 x8 -0.57333 0.30556 162.91566 3.52 0.0645 x9 2.53083 1.10915 240.93103 5.21 0.0253 x10 -0.00022417 0.00022271 46.88335 1.01 0.3174 x11 0.13656 0.17818 27.18315 0.59 0.4458 x12 -0.46057 0.32833 91.05688 1.97 0.1648 x13 0.08873 0.07296 68.43977 1.48 0.2278 x14 -0.13449 0.34884 6.87826 0.15 0.7009 x15 -4.86747E-7 5.210768E-7 40.37890 0.87 0.3532 x17 -0.06942 0.08360 31.91328 0.69 0.4089 x18 -0.06942 0.07021 45.23601 0.98 0.3260 x19 0.01210 0.06863 1.43819 0.03 0.8605 Bounds on condition number: 7.6956, 1171.7 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 2 Variable x19 Removed: R-Square = 0.8562 and C(p) = 16.0456 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 17 20677 1216.28040 26.62 <.0001 Error 76 3472.10600 45.68561 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -31.10460 17.76695 140.02409 3.06 0.0840 x1 0.03422 0.06205 13.89518 0.30 0.5829 x2 2.59528 0.63386 765.87581 16.76 0.0001 x3 0.23185 0.08755 320.38897 7.01 0.0098 x4 0.83917 0.20751 747.17294 16.35 0.0001 x5 0.27928 0.09603 386.42668 8.46 0.0048 x6 0.15660 0.09544 122.99111 2.69 0.1050 x7 -2.36126 1.11081 206.43630 4.52 0.0368 x8 -0.55220 0.27929 178.59469 3.91 0.0516 x9 2.57117 1.07834 259.73241 5.69 0.0196 x10 -0.00022351 0.00022125 46.62327 1.02 0.3156 x11 0.13374 0.17632 26.28239 0.58 0.4505 x12 -0.46599 0.32480 94.03956 2.06 0.1555 x13 0.09223 0.06976 79.86162 1.75 0.1901 x14 -0.13123 0.34613 6.56705 0.14 0.7056 x15 -4.95163E-7 5.15567E-7 42.14106 0.92 0.3399 x17 -0.06881 0.08299 31.40697 0.69 0.4096 x18 -0.07183 0.06843 50.33886 1.10 0.2972 Bounds on condition number: 7.6333, 1015.2 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 3 Variable x14 Removed: R-Square = 0.8559 and C(p) = 14.1856 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 16 20670 1291.88748 28.60 <.0001 Error 77 3478.67305 45.17757 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -32.74485 17.13609 164.96251 3.65 0.0597 x1 0.02882 0.06006 10.40519 0.23 0.6326 x2 2.55602 0.62186 763.24738 16.89 <.0001 x3 0.22948 0.08684 315.48101 6.98 0.0100 x4 0.84591 0.20559 764.85240 16.93 <.0001 x5 0.27517 0.09488 379.98013 8.41 0.0049 x6 0.14991 0.09328 116.69656 2.58 0.1121 x7 -2.27731 1.08245 199.96398 4.43 0.0387 x8 -0.54482 0.27706 174.69920 3.87 0.0528 x9 2.54343 1.06986 255.33358 5.65 0.0199 x10 -0.00023053 0.00021925 49.94373 1.11 0.2964 x11 0.09433 0.14165 20.03834 0.44 0.5074 x12 -0.45860 0.32240 91.41137 2.02 0.1589 x13 0.09430 0.06915 83.99962 1.86 0.1767 x15 -5.37984E-7 5.002393E-7 52.25231 1.16 0.2855 x17 -0.07448 0.08118 38.03571 0.84 0.3617 x18 -0.07017 0.06791 48.24363 1.07 0.3047 Bounds on condition number: 6.2264, 808.72 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 4 Variable x1 Removed: R-Square = 0.8555 and C(p) = 12.4075 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 15 20660 1377.31964 30.79 <.0001 Error 78 3489.07824 44.73177 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -31.78995 16.93600 157.60649 3.52 0.0642 x2 2.64968 0.58753 909.80381 20.34 <.0001 x3 0.22110 0.08464 305.20202 6.82 0.0108 x4 0.86650 0.20007 839.05373 18.76 <.0001 x5 0.26758 0.09309 369.57546 8.26 0.0052 x6 0.14078 0.09086 107.37949 2.40 0.1253 x7 -2.32411 1.07272 209.97066 4.69 0.0333 x8 -0.56625 0.27208 193.74404 4.33 0.0407 x9 2.60267 1.05746 270.97292 6.06 0.0161 x10 -0.00023797 0.00021762 53.49190 1.20 0.2775 x11 0.09651 0.14087 20.99396 0.47 0.4953 x12 -0.45745 0.32080 90.95545 2.03 0.1579 x13 0.09064 0.06839 78.56767 1.76 0.1889 x15 -5.5371E-7 4.966959E-7 55.59040 1.24 0.2684 x17 -0.09478 0.06894 84.54146 1.89 0.1731 x18 -0.07510 0.06679 56.55065 1.26 0.2643 Bounds on condition number: 5.6132, 671.61 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 5 Variable x11 Removed: R-Square = 0.8546 and C(p) = 10.8552 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 14 20639 1474.20004 33.18 <.0001 Error 79 3510.07220 44.43129 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -26.90197 15.30803 137.22024 3.09 0.0827 x2 2.76929 0.55910 1090.07021 24.53 <.0001 x3 0.22954 0.08346 336.09282 7.56 0.0074 x4 0.89107 0.19617 916.78887 20.63 <.0001 x5 0.29527 0.08358 554.50675 12.48 0.0007 x6 0.13718 0.09040 102.30606 2.30 0.1332 x7 -2.24533 1.06295 198.25569 4.46 0.0378 x8 -0.56341 0.27113 191.85444 4.32 0.0410 x9 2.79654 1.01546 336.97854 7.58 0.0073 x10 -0.00025881 0.00021476 64.52691 1.45 0.2318 x12 -0.49333 0.31543 108.68171 2.45 0.1218 x13 0.07498 0.06424 60.52505 1.36 0.2467 x15 -5.48318E-7 4.949627E-7 54.52670 1.23 0.2713 x17 -0.10353 0.06752 104.45117 2.35 0.1292 x18 -0.07397 0.06655 54.89134 1.24 0.2697 Bounds on condition number: 5.2444, 531.84 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 6 Variable x15 Removed: R-Square = 0.8524 and C(p) = 10.0181 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 13 20584 1583.40568 35.54 <.0001 Error 80 3564.59890 44.55749 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -26.17562 15.31569 130.14918 2.92 0.0913 x2 2.65234 0.54982 1036.91430 23.27 <.0001 x3 0.24996 0.08151 418.97190 9.40 0.0030 x4 0.90278 0.19616 943.77501 21.18 <.0001 x5 0.28559 0.08324 524.47495 11.77 0.0010 x6 0.14509 0.09025 115.16467 2.58 0.1118 x7 -2.22269 1.06426 194.35036 4.36 0.0399 x8 -0.62992 0.26478 252.18915 5.66 0.0197 x9 2.87785 1.01424 358.73325 8.05 0.0058 x10 -0.00024454 0.00021468 57.81530 1.30 0.2581 x12 -0.48199 0.31571 103.85313 2.33 0.1308 x13 0.08890 0.06309 88.45865 1.99 0.1627 x17 -0.10750 0.06752 112.94446 2.53 0.1153 x18 -0.08240 0.06621 69.01312 1.55 0.2169 Bounds on condition number: 4.9887, 465.44 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 7 Variable x10 Removed: R-Square = 0.8500 and C(p) = 9.2510 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 12 20526 1710.53821 38.25 <.0001 Error 81 3622.41419 44.72116 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -30.91434 14.76693 195.99841 4.38 0.0394 x2 2.72724 0.54687 1112.21287 24.87 <.0001 x3 0.25764 0.08138 448.20414 10.02 0.0022 x4 0.89816 0.19648 934.54514 20.90 <.0001 x5 0.26635 0.08166 475.78298 10.64 0.0016 x6 0.15218 0.09020 127.30516 2.85 0.0954 x7 -3.04190 0.78593 669.93418 14.98 0.0002 x8 -0.58887 0.26280 224.55164 5.02 0.0278 x9 2.82715 1.01513 346.87323 7.76 0.0067 x12 -0.36631 0.29948 66.90723 1.50 0.2248 x13 0.07698 0.06233 68.21397 1.53 0.2204 x17 -0.10379 0.06757 105.51862 2.36 0.1284 x18 -0.08271 0.06633 69.54640 1.56 0.2160 Bounds on condition number: 4.9545, 382.14 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 8 Variable x12 Removed: R-Square = 0.8472 and C(p) = 8.6779 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 11 20460 1859.95921 41.34 <.0001 Error 82 3689.32142 44.99172 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -36.32442 14.13151 297.27112 6.61 0.0120 x2 2.79444 0.54575 1179.60354 26.22 <.0001 x3 0.27915 0.07970 551.92307 12.27 0.0007 x4 0.86533 0.19522 883.97114 19.65 <.0001 x5 0.25665 0.08152 445.96097 9.91 0.0023 x6 0.15286 0.09047 128.44181 2.85 0.0949 x7 -3.06559 0.78807 680.81937 15.13 0.0002 x8 -0.48395 0.24915 169.74794 3.77 0.0555 x9 2.66048 1.00898 312.81631 6.95 0.0100 x13 0.06122 0.06117 45.06225 1.00 0.3199 x17 -0.10717 0.06772 112.69701 2.50 0.1173 x18 -0.09017 0.06625 83.35951 1.85 0.1772 Bounds on condition number: 4.8154, 313.15 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 9 Variable x13 Removed: R-Square = 0.8454 and C(p) = 7.6389 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 10 20414 2041.44891 45.37 <.0001 Error 83 3734.38367 44.99257 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -36.74747 14.12532 304.50813 6.77 0.0110 x2 2.92970 0.52875 1381.28890 30.70 <.0001 x3 0.29785 0.07748 664.84642 14.78 0.0002 x4 0.88084 0.19461 921.74538 20.49 <.0001 x5 0.25512 0.08151 440.80286 9.80 0.0024 x6 0.15761 0.09035 136.92808 3.04 0.0848 x7 -3.05186 0.78796 674.94115 15.00 0.0002 x8 -0.52217 0.24621 202.36836 4.50 0.0369 x9 2.42006 0.97997 274.38923 6.10 0.0156 x17 -0.07612 0.06019 71.96061 1.60 0.2095 x18 -0.07964 0.06540 66.70998 1.48 0.2268 Bounds on condition number: 4.52, 250.57 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 10 Variable x18 Removed: R-Square = 0.8426 and C(p) = 7.0615 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 9 20348 2260.86435 49.96 <.0001 Error 84 3801.09365 45.25111 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -41.89382 13.51687 434.68721 9.61 0.0026 x2 3.12337 0.50571 1726.12790 38.15 <.0001 x3 0.27345 0.07506 600.54470 13.27 0.0005 x4 0.85820 0.19427 883.02817 19.51 <.0001 x5 0.22202 0.07706 375.62582 8.30 0.0050 x6 0.16019 0.09058 141.52501 3.13 0.0806 x7 -2.99580 0.78887 652.60075 14.42 0.0003 x8 -0.58803 0.24089 269.65665 5.96 0.0167 x9 2.52652 0.97886 301.45921 6.66 0.0116 x17 -0.08472 0.05995 90.38800 2.00 0.1613 Bounds on condition number: 4.1652, 203.03 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 11 Variable x17 Removed: R-Square = 0.8389 and C(p) = 6.9891 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 8 20257 2532.17389 55.31 <.0001 Error 85 3891.48165 45.78214 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -55.19171 9.76126 1463.63119 31.97 <.0001 x2 3.37613 0.47580 2305.07655 50.35 <.0001 x3 0.29137 0.07441 701.89341 15.33 0.0002 x4 0.80029 0.19101 803.62566 17.55 <.0001 x5 0.22029 0.07750 369.86989 8.08 0.0056 x6 0.16263 0.09109 145.91594 3.19 0.0778 x7 -2.88856 0.78980 612.38060 13.38 0.0004 x8 -0.60859 0.24185 289.89189 6.33 0.0137 x9 2.99166 0.92727 476.54785 10.41 0.0018 Bounds on condition number: 4.0463, 153.51 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 12 Variable x6 Removed: R-Square = 0.8328 and C(p) = 8.1009 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 7 20111 2873.06788 61.20 <.0001 Error 86 4037.39760 46.94648 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -57.87397 9.76682 1648.40217 35.11 <.0001 x2 3.58259 0.46736 2758.60670 58.76 <.0001 x3 0.28084 0.07512 656.18653 13.98 0.0003 x4 0.84241 0.19195 904.24545 19.26 <.0001 x5 0.22916 0.07832 401.91433 8.56 0.0044 x7 -2.75827 0.79636 563.19310 12.00 0.0008 x8 -0.69307 0.24018 390.93145 8.33 0.0049 x9 2.87062 0.93648 441.12607 9.40 0.0029 Bounds on condition number: 4.0208, 122.51 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 13 Variable x8 Removed: R-Square = 0.8166 and C(p) = 14.4378 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 6 19721 3286.75729 64.57 <.0001 Error 87 4428.32905 50.90033 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -45.62706 9.15947 1263.06180 24.81 <.0001 x2 3.29397 0.47537 2443.95970 48.01 <.0001 x3 0.22371 0.07545 447.45499 8.79 0.0039 x4 0.73172 0.19584 710.59978 13.96 0.0003 x5 0.29656 0.07784 738.81954 14.52 0.0003 x7 -2.52609 0.82498 477.24048 9.38 0.0029 x9 1.30320 0.79433 137.00543 2.69 0.1045 Bounds on condition number: 3.7416, 75.033 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 14 Variable x9 Removed: R-Square = 0.8110 and C(p) = 15.3596 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 5 19584 3916.70766 75.50 <.0001 Error 88 4565.33448 51.87880 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -42.10691 8.98980 1138.14217 21.94 <.0001 x2 3.47142 0.46733 2862.58274 55.18 <.0001 x3 0.23906 0.07558 518.96951 10.00 0.0021 x4 0.67700 0.19482 626.46769 12.08 0.0008 x5 0.27872 0.07781 665.56781 12.83 0.0006 x7 -2.59134 0.83190 503.38113 9.70 0.0025 Bounds on condition number: 3.684, 54.473 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 15 Variable x7 Removed: R-Square = 0.7901 and C(p) = 24.0946 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 4 19080 4770.03929 83.76 <.0001 Error 89 5068.71560 56.95186 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -31.02143 8.64962 732.55032 12.86 0.0005 x2 3.03206 0.46681 2402.70047 42.19 <.0001 x3 0.27552 0.07824 706.25278 12.40 0.0007 x4 0.57525 0.20123 465.38554 8.17 0.0053 x5 0.23759 0.08035 497.96867 8.74 0.0040 Bounds on condition number: 3.5957, 36.822 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 16 Variable x4 Removed: R-Square = 0.7708 and C(p) = 32.0193 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 3 18615 6204.92387 100.91 <.0001 Error 90 5534.10115 61.49001 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -20.74450 8.17453 395.99067 6.44 0.0129 x2 2.91189 0.48308 2234.14335 36.33 <.0001 x3 0.36922 0.07382 1538.32110 25.02 <.0001 x5 0.21404 0.08305 408.43760 6.64 0.0116 Bounds on condition number: 2.9646, 21.001 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 17 Variable x5 Removed: R-Square = 0.7539 and C(p) = 38.7296 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 2 18206 9103.16701 139.40 <.0001 Error 91 5942.53875 65.30262 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -23.32838 8.36055 508.42916 7.79 0.0064 x2 3.40349 0.45738 3615.92871 55.37 <.0001 x3 0.28122 0.06744 1135.32264 17.39 <.0001 Bounds on condition number: 2.3303, 9.3211 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 18 Variable x3 Removed: R-Square = 0.7069 and C(p) = 60.9413 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 1 17071 17071 221.89 <.0001 Error 92 7077.86139 76.93328 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept -45.22664 7.06068 3156.53210 41.03 <.0001 x2 4.84442 0.32521 17071 221.89 <.0001 Bounds on condition number: 1, 1 -------------------------------------------------------------------------------------------------- Backward Elimination: Step 19 Variable x2 Removed: R-Square = 0.0000 and C(p) = 422.9949 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 0 0 . . . Error 93 24149 259.66530 Corrected Total 93 24149 Parameter Standard Variable Estimate Error Type II SS F Value Pr > F Intercept 59.08298 1.66205 328135 1263.68 <.0001 Bounds on condition number: 0, 0 -------------------------------------------------------------------------------------------------- All variables left in the model are significant at the 0.0000 level. Summary of Backward Elimination Variable Number Partial Model Step Removed Label Vars In R-Square R-Square C(p) F Value Pr > F 1 x16 phd 18 0.0000 0.8563 18.0149 0.01 0.9032 2 x19 outstate 17 0.0001 0.8562 16.0456 0.03 0.8605 3 x14 ast_sal 16 0.0003 0.8559 14.1856 0.14 0.7056 4 x1 top10 15 0.0004 0.8555 12.4075 0.23 0.6326 5 x11 full_sal 14 0.0009 0.8546 10.8552 0.47 0.4953 6 x15 pop 13 0.0023 0.8524 10.0181 1.23 0.2713 7 x10 attend 12 0.0024 0.8500 9.2510 1.30 0.2581 8 x12 sf_ratio 11 0.0028 0.8472 8.6779 1.50 0.2248 9 x13 white 10 0.0019 0.8454 7.6389 1.00 0.3199 10 x18 l_pct 9 0.0028 0.8426 7.0615 1.48 0.2268 11 x17 accept 8 0.0037 0.8389 6.9891 2.00 0.1613 12 x6 tateach 7 0.0060 0.8328 8.1009 3.19 0.0778 13 x8 tuition 6 0.0162 0.8166 14.4378 8.33 0.0049 14 x9 board 5 0.0057 0.8110 15.3596 2.69 0.1045 15 x7 bbindex 4 0.0208 0.7901 24.0946 9.70 0.0025 16 x4 ft_grad 3 0.0193 0.7708 32.0193 8.17 0.0053 17 x5 size 2 0.0169 0.7539 38.7296 6.64 0.0116 18 x3 oncampus 1 0.0470 0.7069 60.9413 17.39 <.0001 19 x2 act25 0 0.7069 0.0000 422.995 221.89 <.0001