-------------------------------------------------------------------------------- log: C:\Documents and Settings\Patricia_Anderson\My Documents\ECON 20\In > Class\oct14.log log type: text opened on: 14 Oct 2002, 11:11:49 . use gpa1 . reg colGPA hsGPA skipped Source | SS df MS Number of obs = 141 -------------+------------------------------ F( 2, 138) = 19.77 Model | 4.32237812 2 2.16118906 Prob > F = 0.0000 Residual | 15.0837213 138 .109302328 R-squared = 0.2227 -------------+------------------------------ Adj R-squared = 0.2115 Total | 19.4060994 140 .138614996 Root MSE = .33061 ------------------------------------------------------------------------------ colGPA | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- hsGPA | .4588039 .0876908 5.23 0.000 .2854125 .6321952 skipped | -.0774349 .0257646 -3.01 0.003 -.1283792 -.0264905 _cons | 1.579167 .3033669 5.21 0.000 .9793183 2.179015 ------------------------------------------------------------------------------ . reg colGPA hsGPA skipped if greek==1 Source | SS df MS Number of obs = 45 -------------+------------------------------ F( 2, 42) = 1.43 Model | .333024658 2 .166512329 Prob > F = 0.2498 Residual | 4.87675341 42 .116113176 R-squared = 0.0639 -------------+------------------------------ Adj R-squared = 0.0193 Total | 5.20977806 44 .118404047 Root MSE = .34075 ------------------------------------------------------------------------------ colGPA | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- hsGPA | .2541847 .1563634 1.63 0.112 -.0613694 .5697388 skipped | -.0191427 .0472619 -0.41 0.688 -.114521 .0762356 _cons | 2.253212 .5437688 4.14 0.000 1.155842 3.350582 ------------------------------------------------------------------------------ . reg colGPA hsGPA skipped if greek==0 Source | SS df MS Number of obs = 96 -------------+------------------------------ F( 2, 93) = 22.95 Model | 4.65470359 2 2.3273518 Prob > F = 0.0000 Residual | 9.4302963 93 .101401036 R-squared = 0.3305 -------------+------------------------------ Adj R-squared = 0.3161 Total | 14.0849999 95 .148263157 Root MSE = .31844 ------------------------------------------------------------------------------ colGPA | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- hsGPA | .5437841 .1038769 5.23 0.000 .3375052 .750063 skipped | -.1107152 .0306108 -3.62 0.000 -.171502 -.0499283 _cons | 1.29899 .3587507 3.62 0.000 .5865819 2.011397 ------------------------------------------------------------------------------ . gen hsGgreek=hsGPA*greek . gen skipgreek=skipped*greek . reg colGPA hsGPA skipped greek hsGgreek skipgreek Source | SS df MS Number of obs = 141 -------------+------------------------------ F( 5, 135) = 9.62 Model | 5.09904974 5 1.01980995 Prob > F = 0.0000 Residual | 14.3070497 135 .105978146 R-squared = 0.2628 -------------+------------------------------ Adj R-squared = 0.2354 Total | 19.4060994 140 .138614996 Root MSE = .32554 ------------------------------------------------------------------------------ colGPA | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- hsGPA | .5437841 .1061954 5.12 0.000 .3337622 .753806 skipped | -.1107152 .031294 -3.54 0.001 -.172605 -.0488253 greek | .9542225 .6359142 1.50 0.136 -.3034201 2.211865 hsGgreek | -.2895994 .1832836 -1.58 0.116 -.652078 .0728792 skipgreek | .0915725 .0549366 1.67 0.098 -.0170752 .2002201 _cons | 1.29899 .3667581 3.54 0.001 .573655 2.024324 ------------------------------------------------------------------------------ . test greek hsGgreek skipgreek ( 1) greek = 0.0 ( 2) hsGgreek = 0.0 ( 3) skipgreek = 0.0 F( 3, 135) = 2.44 Prob > F = 0.0669 . use affairs, clear . desc Contains data from affairs.dta obs: 601 vars: 19 22 May 2002 11:49 size: 18,030 (100.0% of memory free) ------------------------------------------------------------------------------- storage display value variable name type format label variable label ------------------------------------------------------------------------------- id int %9.0g identifier male byte %9.0g =1 if male age float %9.0g in years yrsmarr float %9.0g years married kids byte %9.0g =1 if have kids relig byte %9.0g 5 = very relig., 4 = somewhat, 3 = slightly, 2 = not at all, 1 = anti educ byte %9.0g years schooling occup byte %9.0g occupation, reverse Hollingshead scale ratemarr byte %9.0g 5 = vry hap marr, 4 = hap than avg, 3 = avg, 2 = smewht unhap, 1 = vry unhap naffairs byte %9.0g number of affairs within last year affair byte %9.0g =1 if had at least one affair vryhap byte %9.0g ratemarr == 5 hapavg byte %9.0g ratemarr == 4 avgmarr byte %9.0g ratemarr == 3 unhap byte %9.0g ratemarr == 2 vryrel byte %9.0g relig == 5 smerel byte %9.0g relig == 4 slghtrel byte %9.0g relig == 3 notrel byte %9.0g relig == 2 ------------------------------------------------------------------------------- Sorted by: id . reg affair yrsmarr age vryhap vryrel Source | SS df MS Number of obs = 601 -------------+------------------------------ F( 4, 596) = 8.73 Model | 6.22993724 4 1.55748431 Prob > F = 0.0000 Residual | 106.332459 596 .178410166 R-squared = 0.0553 -------------+------------------------------ Adj R-squared = 0.0490 Total | 112.562396 600 .187603993 Root MSE = .42239 ------------------------------------------------------------------------------ affair | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- yrsmarr | .0161081 .0049764 3.24 0.001 .0063347 .0258816 age | -.0059052 .0029653 -1.99 0.047 -.011729 -.0000815 vryhap | -.1436799 .0365902 -3.93 0.000 -.2155413 -.0718184 vryrel | -.0761452 .0546054 -1.39 0.164 -.1833875 .0310972 _cons | .3740355 .0747993 5.00 0.000 .2271332 .5209377 ------------------------------------------------------------------------------ . predict predaffair (option xb assumed; fitted values) . sum pred* Variable | Obs Mean Std. Dev. Min Max -------------+----------------------------------------------------- predaffair | 601 .249584 .1018981 -.0696469 .4266901 . log close log: C:\Documents and Settings\Patricia_Anderson\My Documents\ECON 20\I > nClass\oct14.log log type: text closed on: 14 Oct 2002, 12:25:22 -------------------------------------------------------------------------------