please answer this question in an elaborate manner!!! i know jt was answered this one but the answer was not helpful AT ALL!!

regress birthweight smoker educ age, robust Linear regression = Number of obs F(3, 2396) Prob > F R-squared Root MSE 2,400 33.74 0.0000 0.0386 598.25 # # birthweight Robust Std. Err. Coef. P>It! [95% Conf. Interval] smoker educ age cons -256.7958 16.38375 3.205687 3136.916 32.92089 6.437643 2.723173 89.35472 -7.80 2.54 1.18 35.11 0.000 0.011 0.239 0.000 -321.3521 3.759826 -2.134331 2961.696 - 192.2394 29.00768 8.545705 3312.137 O O Results (at least 2 paragraphs) o Include an appropriate regression results table. What did you find in your regression results? Write the hypothesis? How do your hypotheses tests turn out? Discuss the significance of each coefficient. Tell me the sign (+/-) and size of the estimated coefficients in your Equation (1). Are they reasonable: do they match your hypotheses? Does it matter if you choose a 5% or 1% significance level? o Discuss R-squared. Is it reasonable