Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4839 7569746 0061664 4289546 7448856 7690636 | 1857 8648358 0079361 341991 8492711 8804004 -+ -combined | 6696 7868877 0050048 4095369 7770767 7966987 -+ -diff | -.1078612 0100502 -.1275649 -.0881574 -diff = mean(0) - mean(C t = -10.7322 Ho: diff = Satterthwaite's degrees of freedom = 4187.98 Ha: diff < Pr(T < t) = 0.0000 Ha: diff != Pr(|T| > |t|) = 0.0000 Ha: diff > Pr(T > t) = 1.0000 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4839 7792932 0059625 414766 7676041 7909824 | 1857 8185245 0089461 3855155 8009789 8360701 -+ -combined | 6696 7901732 0049764 4072152 7804179 7999286 -+ -diff | -.0392313 010751 -.06031 -.0181526 -diff = mean(0) - mean(C t = -3.6491 Ho: diff = Satterthwaite's degrees of freedom = 3598.68 Ha: diff < Pr(T < t) = 0.0001 Ha: diff != Pr(|T| > |t|) = 0.0003 Ha: diff > Pr(T > t) = 0.9999 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4839 50.11986 2163984 15.05331 49.69562 50.5441 | 1857 47.5385 2803524 12.08121 46.98866 48.08834 -+ -combined | 6696 49.40397 1752055 14.33691 49.06051 49.74743 -+ -diff | 2.581357 354155 1.887023 3.27569 diff = mean(0) - mean(C Ho: diff = Ha: diff < Pr(T < t) = 1.0000 t = Satterthwaite's degrees of freedom = Ha: diff != Pr(|T| > |t|) = 0.0000 7.2888 4159.94 Ha: diff > Pr(T > t) = 0.0000 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4839 2.377351 0174747 1.215594 2.343092 2.411609 | 1857 2.619817 0256387 1.104846 2.569533 2.670101 -+ -combined | 6696 2.444594 0145522 1.190794 2.416067 2.473121 -+ -diff | -.2424662 0310275 -.3032991 -.1816333 -diff = mean(0) - mean(C t = -7.8145 Ho: diff = Satterthwaite's degrees of freedom = 3676.55 Ha: diff < Pr(T < t) = 0.0000 Ha: diff != Pr(|T| > |t|) = 0.0000 Ha: diff > Pr(T > t) = 1.0000 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4839 2879.608 107.5552 7481.856 2668.751 3090.466 | 1857 3861.118 218.1903 9402.456 3433.194 4289.043 -+ -combined | 6696 3151.81 98.64121 8071.72 2958.442 3345.179 -+ -diff | -981.5101 243.2594 -1458.496 -504.5246 -diff = mean(0) - mean(C t = -4.0348 Ho: diff = Satterthwaite's degrees of freedom = 2804.06 Ha: diff < Pr(T < t) = 0.0000 Ha: diff != Pr(|T| > |t|) = 0.0001 Ha: diff > Pr(T > t) = 1.0000 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4836 66.79673 5409865 37.62093 65.73615 67.85731 | 1857 80.01885 1.06546 45.91377 77.92922 82.10847 -+ -combined | 6693 70.46526 4953549 40.52536 69.49421 71.43632 -+ -diff | -13.22211 1.194935 -15.56514 -10.87909 -diff = mean(0) - mean(C t = -11.0651 Ho: diff = Satterthwaite's degrees of freedom = 2863.29 Ha: diff < Pr(T < t) = 0.0000 Ha: diff != Pr(|T| > |t|) = 0.0000 Ha: diff > Pr(T > t) = 1.0000 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4792 18333.39 430.7751 29820.09 17488.88 19177.91 | 1847 32943.85 1510.16 64901.77 29982.04 35905.65 -+ -combined | 6639 22398.09 528.7471 43082.35 21361.57 23434.6 -+ -diff | -14610.45 1570.399 -17690.11 -11530.8 -diff = mean(0) - mean(C t = -9.3037 Ho: diff = Satterthwaite's degrees of freedom = 2153.14 Ha: diff < Pr(T < t) = 0.0000 Ha: diff != Pr(|T| > |t|) = 0.0000 Ha: diff > Pr(T > t) = 1.0000 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4839 2521182 0062429 4342736 2398793 2643571 | 1857 1480883 0082446 3552832 1319187 1642579 -+ -combined | 6696 2232676 0050895 4164674 2132906 2332446 -+ -diff | 1040299 0103415 0837549 1243049 -diff = mean(0) - mean(C t = 10.0594 Ho: diff = Satterthwaite's degrees of freedom = 4079.95 Ha: diff < Pr(T < t) = 1.0000 Ha: diff != Pr(|T| > |t|) = 0.0000 Ha: diff > Pr(T > t) = 0.0000 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ | 737 15852.1 444.9173 12078.5 14978.64 16725.56 | 224 19563.84 1904.171 28499.03 15811.37 23316.31 -+ -combined | 961 16717.27 561.4946 17406.33 15615.38 17819.17 -+ -diff | -3711.736 1955.459 -7563.176 139.704 -diff = mean(0) - mean(C t = -1.8981 Ho: diff = Satterthwaite's degrees of freedom = 247.79 Ha: diff < Pr(T < t) = 0.0294 Ha: diff != Pr(|T| > |t|) = 0.0588 Ha: diff > Pr(T > t) = 0.9706 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4839 3529.931 246.0553 17116.33 3047.55 4012.311 | 1857 2995.739 360.3568 15528.83 2288.992 3702.487 -+ -combined | 6696 3381.783 203.9834 16691.77 2981.911 3781.656 -+ -diff | 534.1912 436.3488 -321.3179 1389.7 -diff = mean(0) - mean(C t = 1.2242 Ho: diff = Satterthwaite's degrees of freedom = 3682.96 Ha: diff < Pr(T < t) = 0.8895 Ha: diff != Pr(|T| > |t|) = 0.2209 Ha: diff > Pr(T > t) = 0.11 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4114 1156.239 27.50076 1763.912 1102.323 1210.156 | 1415 879.2225 36.66975 1379.387 807.2895 951.1554 -+ -combined | 5529 1085.344 22.56909 1678.175 1041.1 1129.589 -+ -diff | 277.017 45.83626 187.1446 366.8893 -diff = mean(0) - mean(C t = 6.0436 Ho: diff = Satterthwaite's degrees of freedom = 3113.29 Ha: diff < Pr(T < t) = 1.0000 Ha: diff != Pr(|T| > |t|) = 0.0000 Ha: diff > Pr(T > t) = 0.0000 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4839 43772.27 750.9303 52236.9 42300.11 45244.43 | 1857 64935.92 1646.662 70959.5 61706.41 68165.42 -+ -combined | 6696 49641.58 718.5766 58800.47 48232.94 51050.22 -+ -diff | -21163.65 1809.805 -24712.41 -17614.88 -diff = mean(0) - mean(C t = -11.6939 Ho: diff = Satterthwaite's degrees of freedom = 2664.04 Ha: diff < Pr(T < t) = 0.0000 Ha: diff != Pr(|T| > |t|) = 0.0000 Ha: diff > Pr(T > t) = 1.0000 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4705 7256111 0065058 4462533 7128566 7383655 | 1808 8113938 0092027 3913037 7933448 8294428 -+ -combined | 6513 7494242 00537 4333779 7388972 7599512 -+ -diff | -.0857828 0112701 -.1078789 -.0636866 -diff = mean(0) - mean(C t = -7.6115 Ho: diff = Satterthwaite's degrees of freedom = 3708.68 Ha: diff < Pr(T < t) = 0.0000 Ha: diff != Pr(|T| > |t|) = 0.0000 Ha: diff > Pr(T > t) = 1.0000 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4705 8714134 0048806 3347774 8618451 8809817 | 1808 9015487 0070085 2980063 887803 9152943 -+ -combined | 6513 8797789 0040301 3252449 8718785 8876793 -+ -diff | -.0301353 0085405 -.0468799 -.0133907 -diff = mean(0) - mean(C t = -3.5285 Ho: diff = Satterthwaite's degrees of freedom = 3654.44 Ha: diff < Pr(T < t) = 0.0002 Ha: diff != Pr(|T| > |t|) = 0.0004 Ha: diff > Pr(T > t) = 0.9998 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 4705 5419766 0072644 4982878 527735 5562183 | 1808 6438053 0112653 4790062 621711 6658996 -+ -combined | 6513 5702441 0061346 4950792 5582184 5822699 -+ -diff | -.1018287 0134044 -.1281102 -.0755472 -diff = mean(0) - mean(C t = -7.5967 Ho: diff = Satterthwaite's degrees of freedom = 3396.65 Ha: diff < Ha: diff != Ha: diff > Pr(T < t) = 0.0000 Pr(|T| > |t|) = 0.0000 Pr(T > t) = 1.0000 Two-sample t test with unequal variances -Group | Obs Mean Std Err Std Dev [95% Conf Interval] -+ -0 | 3006 561.8348 10.19251 558.8245 541.8498 581.8198 C | 1085 692.1611 18.14886 597.8115 656.5502 727.772 -+ -combined | 4091 596.3994 8.946879 572.2506 578.8587 613.9402 -+ -diff | -130.3263 20.8151 -171.1505 -89.5022 -diff = mean(0) - mean(C t = -6.2611 Ho: diff = Satterthwaite's degrees of freedom = 1810.65 Ha: diff < Pr(T < t) = 0.0000 Iteration Iteration Iteration Iteration Iteration 0: 1: 2: 3: 4: log log log log log Ha: diff != Pr(|T| > |t|) = 0.0000 likelihood likelihood likelihood likelihood likelihood Logistic regression Log likelihood = -2229.1269 = = = = = Ha: diff > Pr(T > t) = 1.0000 -2366.4088 -2232.8028 -2229.1453 -2229.1269 -2229.1269 Number of obs LR chi2(17) Prob > chi2 Pseudo R2 = = = = 4091 274.56 0.0000 0.0580 -hodtphinn | Coef Std Err z P>|z| [95% Conf Interval] -+ -dantoc | 2515124 1228126 2.05 0.041 0108041 4922208 gioitinh | 0410255 1048464 0.39 0.696 -.1644697 2465206 tuoi | -.0193533 0030201 -6.41 0.000 -.0252726 -.013434 sonamhoctb | 0018423 0095404 0.19 0.847 -.0168564 0205411 solaodong | 1693599 0344293 4.92 0.000 1018797 23684 tongcpyte | 8.32e-06 3.81e-06 2.18 0.029 8.42e-07 0000158 tongdtnha | 0040389 0009812 4.12 0.000 0021158 005962 tonggttslaub | 5.05e-06 1.35e-06 3.75 0.000 2.41e-06 7.69e-06 dtdatnguoi | -.0000434 0000137 -3.16 0.002 -.0000703 -.0000165 cotrocap | -.0888444 1026547 -0.87 0.387 -.290044 1123552 gtvaymuon | 6.54e-06 3.84e-06 1.71 0.088 -9.73e-07 0000141 gttienguittv | -7.72e-06 3.44e-06 -2.25 0.025 -.0000145 -9.80e-07 tienmat | 1.78e-06 6.83e-07 2.61 0.009 4.46e-07 3.12e-06 dongbang | 1800575 0980479 1.84 0.066 -.0121128 3722278 cosokdtrongxa| 1643702 0967089 1.70 0.089 -.0251758 3539162 codgoto | 1099102 1232205 0.89 0.372 -.1315975 3514178 matdodso | 000164 0000792 2.07 0.038 8.68e-06 0003193 _cons | -1.608489 250733 -6.42 0.000 -2.099917 -1.117061 logit (N=4091): Factor Change in Odds Odds of: C vs -hodtphinn | b z P>|z| e^b e^bStdX SDofX -+ -dantoc | 0.25151 2.048 0.041 1.2860 1.1116 0.4206 gioitinh | 0.04103 0.391 0.696 1.0419 1.0162 0.3925 tuoi | -0.01935 -6.408 0.000 0.9808 0.7593 14.2312 sonamhoctb | 0.00184 0.193 0.847 1.0018 1.0076 4.1286 solaodong | 0.16936 4.919 0.000 1.1845 1.2231 1.1891 tongcpyte | 0.00001 2.181 0.029 1.0000 1.0792 9167.4688 tongdtnha | 0.00404 4.116 0.000 1.0040 1.1744 39.7958 tonggttslaub | 0.00001 3.753 0.000 1.0000 1.2577 45362.3030 dtdatnguoi | -0.00004 -3.158 0.002 1.0000 0.8255 4422.1650 cotrocap | -0.08884 -0.865 0.387 0.9150 0.9630 0.4238 gtvaymuon | 0.00001 1.706 0.088 1.0000 1.0670 9915.0963 gttienguittv | -0.00001 -2.245 0.025 1.0000 0.8888 15272.3695 tienmat | 0.00000 2.613 0.009 1.0000 1.1109 58985.6009 dongbang | 0.18006 1.836 0.066 1.1973 1.0939 0.4984 cosokdtrongxa| 0.16437 1.700 0.089 1.1787 1.0739 0.4338 codgoto | 0.10991 0.892 0.372 1.1162 1.0355 0.3177 matdodso | 0.00016 2.070 0.038 1.0002 1.0984 572.2506 -b = raw coefficient z = z-score for test of b=0 P>|z| = p-value for z-test e^b = exp(b) = factor change in odds for unit increase in X e^bStdX = exp(b*SD of X) = change in odds for SD increase in X SDofX = standard deviation of X