xi: reg zj16 1 . agel'education if gender 2 & zj199 1 i . agel Iage1 0-1 (naturally coded; _Iagel_0 omitted) i . agel *educaton IageXeduca # (coded as above) Source I SS de MS Number of obs 1, 127 F(3, 1123) 37.52 Model | 62482007.1 3 20827335.7 Prob > F 0.0000 Residual | 623405324 1, 123 555124.955 R-squared 0 . 0911 Adj R-squared 0. 0887 Total | 685887331 1, 126 609136.174 Root MSE 745.07 zj16m | Coef. Std. Err. t P>ItI 195% Conf. Interval] Iagel 1 | -64. 68798 159 . 4644 -0.41 0.685 -377.5696 248. 1936 education | 195.0156 27 . 3182 7.14 0.000 141 . 4152 248 . 6161 IageXeduca 1 | 66.93353 43. 87731 1.53 0. 127 -19.15721 153.0243 cons | 28. 62899 104.4637 0.27 0. 784 -176.337 233.595*1: reg zi16 1 . agel'education if gender -1 & zj199 1 i. agel Iage1 0-1 (naturally coded; _Iagel_0 omitted) i . agel *educaten IageXeduca # (coded as above) Source SS df MS Number of obs 1, 534 F(3, 1530) 27.58 Model | 129001490 3 43000496.5 Prob > F 0.0000 Residual | 2.3851e+09 1, 530 1558893. 87 R-squared 0 . 0513 Adj R-squared 0. 0495 Total | 2.5141e+09 1, 533 1639992.9 Root MSE 1248.6 zilem | Coef. Std. Err. t P>ItI 195% Conf. Interval ] Iagel 1 | -293.0564 221.506 -1. 32 0.186 -727 . 5438 141. 4311 education | 228. 6259 41. 18394 5.55 0.000 147.843 309. 4089 IageXeduca 1 | 68. 29102 58. 89906 1. 16 0. 246 -47. 2404 183. 8225 cons | 345. 3702 157.3497 2.19 0. 028 36. 72632 654 . 0141