The data set BWGHT contains data on births to women in the United States. Two variables of interest are the dependent variable, infant birth weight in ounces (bwght), and an explanatory variable, average number of cigarettes the mother smoked per day during pregnancy (cigs). The following simple regres- sion was estimated using data on n = 5

bwght = 1,388 - 0.5 births

What is the predicted birth weight when cigs =0?

i believe the answer to be 48

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