Question: Estimate a multiple linear regression model that regresses infant birthweight in ounces (variable: bwght) on the average number of cigarettes that a woman smoked per

Estimate a multiple linear regression model that regresses infant birthweight in ounces (variable: bwght) on the average number of cigarettes that a woman smoked per day during pregnancy (variable: cigs)and family income in thousands of dollars (variable: faminc). Interpret the coefficient on cigs

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