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# # Daily Assignment 7/2/19 - Estimation
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# Estimate the following equation with and without $faminc$, using the data in _BWGHT.dta_. 
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# $$bwght=\beta_0 +\beta_1cigs+\beta_2faminc+u$$
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#  Report the results in equation form, including the sample size and $R^2$. Discuss your results, focusing on whether adding $faminc$ substantially changes the estimated effect of $cigs$ on $bwght$.
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#  _Note:_ use the `summary()` function on your regression output (your _lm_ object) to obtain a prettier results table with more information.

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