Uji Heteroskedastisitas Uji Multikolinier Uji Heterokedastisitas

3. Uji Heteroskedastisitas

White Heteroskedasticity Test: F-statistic 14.20672 Probability 0.000239 ObsR-squared 18.80848 Probability 0.052764 Test Equation: Dependent Variable: RESID2 Method: Least Squares Date: 120405 Time: 18:44 Sample: 1 20 Included observations: 20 Variable Coefficient Std. Error t-Statistic Prob. C -5523772. 10639494 -0.519176 0.6162 LU 414549.8 226787.0 1.827926 0.1008 LU2 -55035.75 17004.91 -3.236462 0.0102 PDDK 732616.8 279020.8 2.625671 0.0276 PDDK2 -49577.69 22084.15 -2.244945 0.0514 TK 1164627. 2312681. 0.503583 0.6266 TK2 -55361.07 117611.6 -0.470711 0.6490 PDPT 50.28929 11.49990 4.373021 0.0018 PDPT2 1.79E-05 6.67E-05 0.268552 0.7943 LTU -7153.339 4211.092 -1.698690 0.1236 LTU2 2.454031 1.294554 1.895658 0.0905 R-squared 0.940424 Mean dependent var 625619.2 Adjusted R-squared 0.874228 S.D. dependent var 1208311. S.E. of regression 428519.4 Akaike info criterion 29.07555 Sum squared resid 1.65E+12 Schwarz criterion 29.62320 Log likelihood -279.7555 F-statistic 14.20672 Durbin-Watson stat 2.353661 ProbF-statistic 0.000239 Lampiran 10. Uji Statistik Hasil Regresi Berganda Nilai WTP Kegiatan Operasional IPAL Skenario Kedua

1. Uji Normalitas

1 2 3 4 5 6 7 8 -1000 1000 2000 Series: Residu als Sample 1 20 Observations 20 Mean 1.46E-12 Median -14.43353 Maximum 2263.107 Minimum -1403.364 Std. Dev. 811.5088 Skewness 0.709980 Kurtosis 4.543733 Jarque-Bera 3.666165 Probability 0.159920

2. Uji Multikolinier

LU PDDK TK PDPT MIDWTP LTU LU 1.000000 -0.269673 0.065800 0.897833 0.703284 0.649988 PDDK -0.269673 1.000000 0.024368 -0.359356 -0.433025 -0.177128 TK 0.065800 0.024368 1.000000 -0.061431 -0.133511 0.425539 PDPT 0.897833 -0.359356 -0.061431 1.000000 0.863622 0.624482 MIDWTP 0.703284 -0.433025 -0.133511 0.863622 1.000000 0.404845 LTU 0.649988 -0.177128 0.425539 0.624482 0.404845 1.000000

3. Uji Heterokedastisitas

White Heteroskedasticity Test: F-statistic 14.20672 Probability 0.000239 ObsR-squared 18.80848 Probability 0.02764 Test Equation: Dependent Variable: RESID2 Method: Least Squares Date: 120405 Time: 18:44 Sample: 1 20 Included observations: 20 Variable Coefficient Std. Error t-Statistic Prob. C -5523772. 10639494 -0.519176 0.6162 LU 414549.8 226787.0 1.827926 0.1008 LU2 -55035.75 17004.91 -3.236462 0.0102 PDDK 732616.8 279020.8 2.625671 0.0276 PDDK2 -49577.69 22084.15 -2.244945 0.0514 TK 1164627. 2312681. 0.503583 0.6266 TK2 -55361.07 117611.6 -0.470711 0.6490 PDPT 50.28929 11.49990 4.373021 0.0018 PDPT2 1.79E-05 6.67E-05 0.268552 0.7943 LTU -7153.339 4211.092 -1.698690 0.1236 LTU2 2.454031 1.294554 1.895658 0.0905 R-squared 0.940424 Mean dependent var 625619.2 Adjusted R-squared 0.874228 S.D. dependent var 1208311. S.E. of regression 428519.4 Akaike info criterion 29.07555 Sum squared resid 1.65E+12 Schwarz criterion 29.62320 Log likelihood -279.7555 F-statistic 14.20672 Durbin-Watson stat 2.353661 ProbF-statistic 0.000239 Lampiran 11. Uji Statistik Hasil Regresi Berganda Nilai WTP Skenario Ketiga

1. Uji Normalitas

1 2 3 4 5 6 7 -40000 -20000 20000 40000 Series: Residu als Sample 1 21 Observations 21 Mean -8.49E-12 Median -2825.728 Maximum 40432.55 Minimum -47421.03 Std. Dev. 20784.12 Skewness -0.071048 Kurtosis 3.081820 Jarque-Bera 0.023525 Probability 0.988306

2. Uji Multikolinier