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QUESTION
F grants have been given to firms whose workers have less than average ability, so that avgtrain and avgabil are negatively correlated, what is the likely bias in b ˜1 obtained from the simple regres
F grants have been given to firms whose workers have less than average ability, so that avgtrain and avgabil are negatively correlated, what is the likely bias in b ˜1 obtained from the simple regression of avgprod on avgtrain?
