| Multiple Linear Regression - Estimated Regression Equation |
| Veilingprijs[t] = -1294.17091541916 + 12.7663504041186Ouderdom[t] + 87.9087250789109Aantalaanbieders[t] -18.0406873439489Q1[t] -30.5880195495833Q2[t] -79.9887827172398Q3[t] -2.12137332020945t + e[t] |
| Multiple Linear Regression - Ordinary Least Squares | |||||
| Variable | Parameter | S.D. | T-STAT H0: parameter = 0 | 2-tail p-value | 1-tail p-value |
| (Intercept) | -1294.17091541916 | 210.330109 | -6.153 | 2e-06 | 1e-06 |
| Ouderdom | 12.7663504041186 | 0.981127 | 13.0119 | 0 | 0 |
| Aantalaanbieders | 87.9087250789109 | 10.392607 | 8.4588 | 0 | 0 |
| Q1 | -18.0406873439489 | 72.408523 | -0.2492 | 0.805279 | 0.40264 |
| Q2 | -30.5880195495833 | 69.606611 | -0.4394 | 0.664117 | 0.332058 |
| Q3 | -79.9887827172398 | 73.647076 | -1.0861 | 0.287793 | 0.143896 |
| t | -2.12137332020945 | 2.844315 | -0.7458 | 0.462726 | 0.231363 |
| Multiple Linear Regression - Regression Statistics | |
| Multiple R | 0.948982856656472 |
| R-squared | 0.900568462227878 |
| Adjusted R-squared | 0.876704893162569 |
| F-TEST (value) | 37.7382134149012 |
| F-TEST (DF numerator) | 6 |
| F-TEST (DF denominator) | 25 |
| p-value | 2.37605490838178e-11 |
| Multiple Linear Regression - Residual Statistics | |
| Residual Standard Deviation | 138.166631422712 |
| Sum Squared Residuals | 477250.450967485 |
| Multiple Linear Regression - Actuals, Interpolation, and Residuals | |||
| Time or Index | Actuals | Interpolation Forecast | Residuals Prediction Error |
| 1 | 1235 | 1449.80695126559 | -214.806951265586 |
| 2 | 1080 | 1194.03331581141 | -114.033315811407 |
| 3 | 845 | 856.16375877841 | -11.1637587784099 |
| 4 | 1522 | 1403.47467762799 | 118.52532237201 |
| 5 | 1047 | 1196.18454415181 | -149.184544151811 |
| 6 | 1979 | 1952.98457452761 | 26.0154254723945 |
| 7 | 1822 | 1657.44605261157 | 164.553947388434 |
| 8 | 1253 | 1253.10360215193 | -0.103602151928191 |
| 9 | 1297 | 1208.86456842945 | 88.135431570548 |
| 10 | 946 | 887.803453204761 | 58.1965467952386 |
| 11 | 1713 | 1670.12607688921 | 42.8739231107923 |
| 12 | 1024 | 1141.03157788822 | -117.031577888222 |
| 13 | 1147 | 1112.4703500697 | 34.5296499302967 |
| 14 | 1092 | 1126.24580085194 | -34.2458008519355 |
| 15 | 1152 | 1230.49612536818 | -78.4961253681757 |
| 16 | 1336 | 1159.53451316554 | 176.465486834459 |
| 17 | 2131 | 2052.72677059825 | 78.2732294017547 |
| 18 | 1550 | 1663.80191944836 | -113.801919448359 |
| 19 | 1884 | 1620.67895011485 | 263.321049885146 |
| 20 | 2041 | 1891.49734332358 | 149.502656676417 |
| 21 | 845 | 996.280015774918 | -151.280015774918 |
| 22 | 1483 | 1449.5990919517 | 33.4009080482956 |
| 23 | 1055 | 1186.53671024834 | -131.536710248343 |
| 24 | 1545 | 1592.29724624786 | -47.2972462478557 |
| 25 | 729 | 540.972258349928 | 188.027741650072 |
| 26 | 1792 | 1696.44060675324 | 95.5593932467612 |
| 27 | 1175 | 1304.25899325877 | -129.258993258773 |
| 28 | 1593 | 1737.00795781644 | -144.007957816441 |
| 29 | 785 | 658.694541360357 | 126.305458639643 |
| 30 | 744 | 695.091237450988 | 48.9087625490121 |
| 31 | 1356 | 1476.29333273067 | -120.293332730671 |
| 32 | 1262 | 1398.05308177844 | -136.053081778439 |
| Goldfeld-Quandt test for Heteroskedasticity | |||
| p-values | Alternative Hypothesis | ||
| breakpoint index | greater | 2-sided | less |
| 10 | 0.327549965060154 | 0.655099930120308 | 0.672450034939846 |
| 11 | 0.286752542485209 | 0.573505084970418 | 0.713247457514791 |
| 12 | 0.365761135918162 | 0.731522271836324 | 0.634238864081838 |
| 13 | 0.237978950793431 | 0.475957901586863 | 0.762021049206569 |
| 14 | 0.222171512909797 | 0.444343025819595 | 0.777828487090203 |
| 15 | 0.20733667271031 | 0.414673345420619 | 0.79266332728969 |
| 16 | 0.169782031245835 | 0.33956406249167 | 0.830217968754165 |
| 17 | 0.0965076935756143 | 0.193015387151229 | 0.903492306424386 |
| 18 | 0.176870833069723 | 0.353741666139446 | 0.823129166930277 |
| 19 | 0.329404621416442 | 0.658809242832883 | 0.670595378583558 |
| 20 | 0.509062165896422 | 0.981875668207156 | 0.490937834103578 |
| 21 | 0.969494210378809 | 0.0610115792423812 | 0.0305057896211906 |
| 22 | 0.970969433662706 | 0.0580611326745883 | 0.0290305663372942 |
| Meta Analysis of Goldfeld-Quandt test for Heteroskedasticity | |||
| Description | # significant tests | % significant tests | OK/NOK |
| 1% type I error level | 0 | 0 | OK |
| 5% type I error level | 0 | 0 | OK |
| 10% type I error level | 2 | 0.153846153846154 | NOK |
