Assume the population regression is: bwght=_0 + _1cigs + _2faminc + _3male + What are your a priori expectations about the sign of _1, _2 and _3? Explain. <10 marks> Present your regression results in traditional form. Summarise your regression results and carry out any hypothesis tests you consider appropriate. <30 marks> PTO Use google or equivalent to write a brief (1/2 page maximum) synopsis of the literature which explores the relationship between cigarette smoking and birth weight. Academic papers as well as newspaper/magazine articles may be referenced. Does the synopsis accord with your empirical finding above? <15 marks>