The SAS System 1 08:40 Wednesday, November 29, 2000 Variable N Mean Std Dev Minimum Maximum ---------------------------------------------------------------------- ID 7535 278823.64 136266.42 10735.00 580996.00 COSTS 7535 16267407.93 19370150.16 127562.00 224707082 DAYS 7535 20785.42 24166.55 1.0000000 236434.00 VISITS 7535 9853.14 9509.26 19.0000000 105095.00 YEAR 7535 1993.00 1.4118596 1991.00 1995.00 QUARTER 7535 2.5003318 1.1178113 1.0000000 4.0000000 TIME 7535 9.5162575 5.7555246 0 19.0000000 LNC 7535 16.0834996 1.0664386 11.7563578 19.2303083 LND 7535 9.4017244 1.1329640 0 12.3734244 LNV 7535 8.7460977 1.0540256 2.9444390 11.5626200 ---------------------------------------------------------------------- The SAS System 2 08:40 Wednesday, November 29, 2000 Model: MODEL1 Dependent Variable: LNC Analysis of Variance Sum of Mean Source DF Squares Square F Value Prob>F Model 3 7414.73628 2471.57876 16134.882 0.0001 Error 7531 1153.61608 0.15318 C Total 7534 8568.35236 Root MSE 0.39139 R-square 0.8654 Dep Mean 16.08350 Adj R-sq 0.8653 C.V. 2.43346 Parameter Estimates Parameter Standard T for H0: Variable DF Estimate Error Parameter=0 Prob > |T| INTERCEP 1 7.212145 0.04124705 174.852 0.0001 LND 1 0.313585 0.00571346 54.885 0.0001 LNV 1 0.669386 0.00613595 109.092 0.0001 TIME 1 0.007209 0.00078682 9.162 0.0001 Covariance of Estimates COVB INTERCEP LND LNV TIME INTERCEP 0.0017013194 -0.000083303 -0.000096719 -5.452517E-6 LND -0.000083303 0.0000326436 -0.000025126 -4.043411E-7 LNV -0.000096719 -0.000025126 0.0000376499 3.8447734E-7 TIME -5.452517E-6 -4.043411E-7 3.8447734E-7 6.1908211E-7 The SAS System 3 08:40 Wednesday, November 29, 2000 Model: MODEL1 Dependent Variable: E2 Analysis of Variance Sum of Mean Source DF Squares Square F Value Prob>F Model 9 211.27953 23.47550 300.169 0.0001 Error 7525 588.51299 0.07821 C Total 7534 799.79252 Root MSE 0.27966 R-square 0.2642 Dep Mean 0.15310 Adj R-sq 0.2633 C.V. 182.66138 Parameter Estimates Parameter Standard T for H0: Variable DF Estimate Error Parameter=0 Prob > |T| INTERCEP 1 6.464679 0.17553335 36.829 0.0001 LNV 1 -0.768871 0.03513620 -21.883 0.0001 LND 1 -0.591156 0.02705263 -21.852 0.0001 TIME 1 0.015457 0.00551103 2.805 0.0050 LNV2 1 0.027631 0.00300335 9.200 0.0001 LND2 1 0.009368 0.00184392 5.081 0.0001 TIME2 1 -0.000109 0.00010943 -0.995 0.3199 LNVLND 1 0.035489 0.00437689 8.108 0.0001 LNVT 1 -0.001647 0.00077849 -2.115 0.0344 LNDT 1 0.000459 0.00076318 0.601 0.5475 The SAS System 4 08:40 Wednesday, November 29, 2000 Model: MODEL1 Dependent Variable: LNC Analysis of Variance Sum of Mean Source DF Squares Square F Value Prob>F Model 3 7414.73628 2471.57876 16134.882 0.0001 Error 7531 1153.61608 0.15318 C Total 7534 8568.35236 Root MSE 0.39139 R-square 0.8654 Dep Mean 16.08350 Adj R-sq 0.8653 C.V. 2.43346 Parameter Estimates Parameter Standard T for H0: Variable DF Estimate Error Parameter=0 Prob > |T| INTERCEP 1 7.212145 0.04124705 174.852 0.0001 LND 1 0.313585 0.00571346 54.885 0.0001 LNV 1 0.669386 0.00613595 109.092 0.0001 TIME 1 0.007209 0.00078682 9.162 0.0001 Dependent Variable: LNC Consistent Covariance of Estimates ACOV INTERCEP LND LNV TIME INTERCEP 0.0045396693 -0.000341553 -0.000132814 -1.872327E-6 LND -0.000341553 0.0000919077 -0.000060463 -8.362646E-7 LNV -0.000132814 -0.000060463 0.0000796523 5.0093802E-7 TIME -1.872327E-6 -8.362646E-7 5.0093802E-7 6.0412614E-7