# (#4) birthweight2.dta contains information, for a sample of 1,719 infants, on infant birth weight (in grams),Apgar scores, demographic characteristics, and health behaviors of the mother.For this...

I need help with these questions. Currently, Im using stata for this assignment. So being familiar with Stata would be best, but if you use other program, that is okay too.

Answered 1 days AfterNov 29, 2022

## Answer To: (#4) birthweight2.dta contains information, for a sample of 1,719 infants, on infant birth weight...

Subhanbasha answered on Nov 30 2022
Question 4:
a).
Ans: The data has features to build the various types of models to identify the effect
of features on the dependent in this case birth weight of babies.
b).
Ans:
Based on the figure a fitted line curve is in the manner of increasing slightly. So, if the curve is in a positive sign, we can expect that β1^ is positive. And for the square term that is square of age will give a negative sign.
c).
Ans:
By observing the summary of the regression table, the p-value associated with the squared term magesq is 0.002 so we can say that the square term is statistically significant with 95% of confidence. It is also significant with 99% confidence. Because the p-value is less than 0.05.
d).
Ans:
Yes, these fitted values are relevant and those are above and below the values. By observing the parabola, the peak point of the fitted values is at the point of 30 on the x-axis. So, the maximum birthweight will be the mothers aged 30 approximately.
e).
Ans: The summary table is all about the regression output where it has the summary of the model which includes the interaction effect.
f).
Ans:
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SOLUTION.PDF