The variables you

need are as follows:

bweight: infant birthweight (grams)

smoke2: 1 if mother smokes 1-5 cigarettes per day, 0 otherwise

smoke3: 1 if mother smokes 6-10 cigarettes per day, 0 otherwise

smoke4: 1 if mother smokes 11 or more cigarettes per day, 0 otherwise

mmarried: 1 if mother married, 0 otherwise

mage: mother's age

bweighti = 1 + 2smoke2i + 3smoke3i + 4smoke4i + 5magei + 6mmariedi + ei (1)

Dependent Variable: BWEIGHT Method: Least Squares Date: 05/05/21 Time: 08:01 Sample: 1 1200 Included observations: 1200 Variable Coefficient Std. Error t-Statistic Prob. C 3161.192 85.08063 37.15525 0.0000 SMOKE2 -183.3664 80.18980 -2.286655 0.0224 SMOKE3 -210.4482 67.67266 -3.109797 0.0019 SMOKE4 -271.5894 64.99755 -4.178457 0.0000 MAGE 5.419030 3.394939 1.596208 0.1107 MMARRIED 151.3034 43.01231 3.517676 0.0005 R-squared 0.055642 Mean dependent var 3369.426 Adjusted R-squared 0.051688 S.D. dependent var 597.4775 S.E. of regression 581.8316 Akaike info criterion 15.57523 Sum squared resid 4.04E+08 Schwarz criterion 15.60068 Log likelihood -9339.136 Hannan-Quinn criter. 15.58481 F-statistic 14.07026 Durbin-Watson stat 1.980587 Prob(F-statistic) 0.000000Dependent Variable: LOG(BWEIGHT) Method: Least Squares Date: 05/03/21 Time: 10:22 Sample: 1 1200 Included observations: 1200 Variable Coefficient Std. Error t-Statistic Prob. C 8.031185 0.032162 249.7111 0.0000 SMOKE2 -0.042403 0.030313 -1.398841 0.1621 SMOKE3 -0.065921 0.025581 -2.576909 0.0101 SMOKE4 -0.101766 0.024570 -4.141835 0.0000 MAGE 0.001614 0.001283 1.258010 0.2086 MMARRIED 0.058887 0.016259 3.621730 0.0003 R-squared 0.048302 Mean dependent var 8.101898 Adjusted R-squared 0.044317 S.D. dependent var 0.224984 S.E. of regression 0.219942 Akaike info criterion -0.185917 Sum squared resid 57.75919 Schwarz criterion -0.160467 Log likelihood 117.5504 Hannan-Quinn criter. -0.176330 F-statistic 12.11994 Durbin-Watson stat 1.888703 Prob(F-statistic) 0.000000