(1) Omitted variable bias A. will always be present as long asthe regression R2 < 1 B. is suspected to exist when the estimated coefficient i different from the true population parameter. C. is suspeted to exits if the estimated coeffcient on the included independent variable changes by more than one standard error when including the omitted variable into the regression D. is suspected to exist the omitted variable is no the True population model But is coroleted with any of the included independent variables.

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