The SAS System 12:57 Sunday, May 7, 2000 1 Variable N Mean Std Dev Minimum Maximum --------------------------------------------------------------------- LOC 858 6.4778555 0.7263014 5.0000000 7.0000000 AGE 858 37.5209790 11.6498968 18.0000000 65.0000000 RACE 858 1.1515152 0.5070139 1.0000000 4.0000000 GEND 858 0.5198135 0.4998987 0 1.0000000 EDUC 858 6.5419580 1.3676499 3.0000000 8.0000000 EMP 858 1.0000000 0 1.0000000 1.0000000 WAGE 858 13.0097902 13.0774231 1.0000000 227.2700000 HOURS 858 40.4463869 11.0217793 4.0000000 100.0000000 WEEKS 858 48.4743590 7.1542381 3.0000000 52.0000000 SALARY 858 26510.98 31111.00 150.0000000 519994.00 INCOME 858 8.6783217 16.4899891 1.0000000 99.0000000 DISLOC 858 0.2552448 0.4362530 0 1.0000000 TRAIN 858 0.4277389 0.4950394 0 1.0000000 MONTHU 858 2.7424242 6.4908225 0 36.0000000 RATE 858 1.3216783 0.6994053 0 2.0000000 YRSCHOOL 858 13.9720280 1.8431268 8.0000000 16.0000000 AGE2 858 1543.39 950.5266816 324.0000000 4225.00 AGEYRS 858 522.0326340 168.2533481 190.0000000 1040.00 YRS2 858 198.6107226 50.6544334 64.0000000 256.0000000 --------------------------------------------------------------------- The SAS System 12:57 Sunday, May 7, 2000 2 Model: MODEL1 Dependent Variable: SALARY Analysis of Variance Sum of Mean Source DF Squares Square F Value Prob>F Model 2 62173901427 31086950714 34.640 0.0001 Error 855 767311422329 897440260.03 C Total 857 829485323756 Root MSE 29957.30729 R-square 0.0750 Dep Mean 26510.97552 Adj R-sq 0.0728 C.V. 112.99964 Parameter Estimates Parameter Standard T for H0: Variable DF Estimate Error Parameter=0 Prob > |T| INTERCEP 1 -45877 8841.8696320 -5.189 0.0001 YRSCHOOL 1 4507.319857 558.18529511 8.075 0.0001 AGE 1 250.834780 88.31033244 2.840 0.0046 Covariance of Estimates COVB INTERCEP YRSCHOOL AGE INTERCEP 78178658.59 -4543992.184 -363634.0356 YRSCHOOL -4543992.184 311570.82368 5082.9142864 AGE -363634.0356 5082.9142864 7798.7148165 The SAS System 12:57 Sunday, May 7, 2000 3 Model: MODEL2 Dependent Variable: SALARY Analysis of Variance Sum of Mean Source DF Squares Square F Value Prob>F Model 3 73466068349 24488689450 27.662 0.0001 Error 854 756019255407 885268448.95 C Total 857 829485323756 Root MSE 29753.46113 R-square 0.0886 Dep Mean 26510.97552 Adj R-sq 0.0854 C.V. 112.23073 Parameter Estimates Parameter Standard T for H0: Variable DF Estimate Error Parameter=0 Prob > |T| INTERCEP 1 -78123 12595.147811 -6.203 0.0001 YRSCHOOL 1 4174.550383 562.16220602 7.426 0.0001 AGE 1 2264.470351 570.58758442 3.969 0.0001 AGE2 1 -25.047323 7.01310201 -3.572 0.0004 Covariance of Estimates COVB INTERCEP YRSCHOOL AGE AGE2 INTERCEP 158637748.38 -3641117.203 -5449199.799 63319.966383 YRSCHOOL -3641117.203 316026.34588 -47517.79644 653.43513863 AGE -5449199.799 -47517.79644 325570.1915 -3954.029265 AGE2 63319.966383 653.43513863 -3954.029265 49.183599872 The SAS System 12:57 Sunday, May 7, 2000 4 Model: MODEL3 Dependent Variable: SALARY Analysis of Variance Sum of Mean Source DF Squares Square F Value Prob>F Model 4 82477706773 20619426693 23.545 0.0001 Error 853 747007616984 875741637.73 C Total 857 829485323756 Root MSE 29592.93223 R-square 0.0994 Dep Mean 26510.97552 Adj R-sq 0.0952 C.V. 111.62521 Parameter Estimates Parameter Standard T for H0: Variable DF Estimate Error Parameter=0 Prob > |T| INTERCEP 1 126617 65042.547422 1.947 0.0519 YRSCHOOL 1 -25765 9349.9203326 -2.756 0.0060 YRS2 1 1090.876312 340.06476182 3.208 0.0014 AGE 1 2138.109036 568.87454146 3.758 0.0002 AGE2 1 -23.974289 6.98328024 -3.433 0.0006 Covariance of Estimates COVB INTERCEP YRSCHOOL YRS2 AGE AGE2 INTERCEP 4230532975.1 -599290548.2 21704558.247 -7904698.966 83988.108561 YRSCHOOL -599290548.2 87421010.227 -3173888.109 320639.90001 -2475.572961 YRS2 21704558.247 -3173888.109 115644.04223 -13395.59137 113.75257431 AGE -7904698.966 320639.90001 -13395.59137 323618.24392 -3924.654496 AGE2 83988.108561 -2475.572961 113.75257431 -3924.654496 48.766202893 The SAS System 12:57 Sunday, May 7, 2000 5 Model: MODEL4 Dependent Variable: SALARY Analysis of Variance Sum of Mean Source DF Squares Square F Value Prob>F Model 5 84619029540 16923805908 19.358 0.0001 Error 852 744866294216 874256213.87 C Total 857 829485323756 Root MSE 29567.82396 R-square 0.1020 Dep Mean 26510.97552 Adj R-sq 0.0967 C.V. 111.53050 Parameter Estimates Parameter Standard T for H0: Variable DF Estimate Error Parameter=0 Prob > |T| INTERCEP 1 186139 75298.336844 2.472 0.0136 YRSCHOOL 1 -31447 10022.786748 -3.138 0.0018 YRS2 1 1191.189750 345.76915403 3.445 0.0006 AGE 1 1066.768749 889.76358276 1.199 0.2309 AGE2 1 -23.391031 6.98730121 -3.348 0.0009 AGEYRS 1 75.182677 48.03923497 1.565 0.1179 Covariance of Estimates COVB INTERCEP YRSCHOOL YRS2 INTERCEP 5669839531.5 -736367261.4 24105520.219 YRSCHOOL -736367261.4 100456254.2 -3401235.044 YRS2 24105520.219 -3401235.044 119556.30788 AGE -33926574.01 2805640.475 -57250.49806 AGE2 98019.742194 -3824.550651 137.44742715 AGEYRS 1827059.3317 -174426.2653 3079.1687662 COVB AGE AGE2 AGEYRS INTERCEP -33926574.01 98019.742194 1827059.3317 YRSCHOOL 2805640.475 -3824.550651 -174426.2653 YRS2 -57250.49806 137.44742715 3079.1687662 AGE 791679.23321 -4173.117508 -32885.30057 AGE2 -4173.117508 48.822378234 17.903370706 AGEYRS -32885.30057 17.903370706 2307.7680962 The SAS System 12:57 Sunday, May 7, 2000 6 Model: MODEL5 Dependent Variable: SALARY Analysis of Variance Sum of Mean Source DF Squares Square F Value Prob>F Model 5 84619029540 16923805908 19.358 0.0001 Error 852 744866294216 874256213.87 C Total 857 829485323756 Root MSE 29567.82396 R-square 0.1020 Dep Mean 26510.97552 Adj R-sq 0.0967 C.V. 111.53050 Parameter Estimates Parameter Standard T for H0: Variable DF Estimate Error Parameter=0 Prob > |T| INTERCEP 1 186139 75298.336844 2.472 0.0136 YRSCHOOL 1 -31447 10022.786748 -3.138 0.0018 YRS2 1 1191.189750 345.76915403 3.445 0.0006 AGE 1 1066.768749 889.76358276 1.199 0.2309 AGE2 1 -23.391031 6.98730121 -3.348 0.0009 AGEYRS 1 75.182677 48.03923497 1.565 0.1179 Dependent Variable: SALARY Consistent Covariance of Estimates ACOV INTERCEP YRSCHOOL YRS2 INTERCEP 1583911052.5 -207515372.8 7041058.863 YRSCHOOL -207515372.8 29895691.582 -1081707.484 YRS2 7041058.863 -1081707.484 42220.849124 AGE -12561598.44 731981.21295 -8194.184043 AGE2 59100.758114 -1887.648226 109.09261725 AGEYRS 578199.68918 -41136.63925 -207.0494679 ACOV AGE AGE2 AGEYRS INTERCEP -12561598.44 59100.758114 578199.68918 YRSCHOOL 731981.21295 -1887.648226 -41136.63925 YRS2 -8194.184043 109.09261725 -207.0494679 AGE 463253.80298 -3339.908417 -15138.79134 AGE2 -3339.908417 39.865166886 10.763386605 AGEYRS -15138.79134 10.763386605 1119.3671433