The SAS System 1 21:44 Wednesday, August 27, 2003 Variable Label N Mean Std Dev Minimum Maximum -------------------------------------------------------------------------------- X Lot Size 25 70.0000000 28.7228132 20.0000000 120.0000000 Y Work Hours 25 312.2800000 113.1376448 113.0000000 546.0000000 XSQ 25 5692.00 4015.48 400.0000000 14400.00 YSQ 25 109806.92 71138.41 12769.00 298116.00 XY 25 24687.20 16613.60 2260.00 65520.00 -------------------------------------------------------------------------------- The SAS System 2 21:44 Wednesday, August 27, 2003 Plot of Y*X. Legend: A = 1 obs, B = 2 obs, etc. | | 550 + A | | | | 500 + | | | A | 450 + | A | | A A | 400 + A | A W | B o | r | A k 350 + A A | A H | o | A u | r 300 + s | | | A A | 250 + A | A | | A A | A 200 + | | | | A A 150 + | | | A | A 100 + | --+------+------+------+------+------+------+------+------+------+------+- 20 30 40 50 60 70 80 90 100 110 120 Lot Size The SAS System 3 21:44 Wednesday, August 27, 2003 Model: MODEL1 Dependent Variable: Y Work Hours Analysis of Variance Sum of Mean Source DF Squares Square F Value Prob>F Model 1 252377.58081 252377.58081 105.876 0.0001 Error 23 54825.45919 2383.71562 C Total 24 307203.04000 Root MSE 48.82331 R-square 0.8215 Dep Mean 312.28000 Adj R-sq 0.8138 C.V. 15.63447 Parameter Estimates Parameter Standard T for H0: Variable DF Estimate Error Parameter=0 Prob > |T| INTERCEP 1 62.365859 26.17743389 2.382 0.0259 X 1 3.570202 0.34697216 10.290 0.0001 Variable Variable DF Label INTERCEP 1 Intercept X 1 Lot Size The SAS System 4 21:44 Wednesday, August 27, 2003 OBS X Y XSQ YSQ XY PREDICT RESIDUAL 1 80 399 6400 159201 31920 347.982 51.018 2 30 121 900 14641 3630 169.472 -48.472 3 50 221 2500 48841 11050 240.876 -19.876 4 90 376 8100 141376 33840 383.684 -7.684 5 70 361 4900 130321 25270 312.280 48.720 6 60 224 3600 50176 13440 276.578 -52.578 7 120 546 14400 298116 65520 490.790 55.210 8 80 352 6400 123904 28160 347.982 4.018 9 100 353 10000 124609 35300 419.386 -66.386 10 50 157 2500 24649 7850 240.876 -83.876 11 40 160 1600 25600 6400 205.174 -45.174 12 70 252 4900 63504 17640 312.280 -60.280 13 90 389 8100 151321 35010 383.684 5.316 14 20 113 400 12769 2260 133.770 -20.770 15 110 435 12100 189225 47850 455.088 -20.088 16 100 420 10000 176400 42000 419.386 0.614 17 30 212 900 44944 6360 169.472 42.528 18 50 268 2500 71824 13400 240.876 27.124 19 90 377 8100 142129 33930 383.684 -6.684 20 110 421 12100 177241 46310 455.088 -34.088 21 30 273 900 74529 8190 169.472 103.528 22 90 468 8100 219024 42120 383.684 84.316 23 40 244 1600 59536 9760 205.174 38.826 24 80 342 6400 116964 27360 347.982 -5.982 25 70 323 4900 104329 22610 312.280 10.720