Assume an omitted variable which is in the error term of a p…

Assume an omitted variable which is in the error term of a population regression model is positively correlated with one of the independent variables in the model. An estimate of a slope coefficient from a regression where the omitted variable is not included __________ the true value of slope parameter.

Consider the following multiple regression models A) to D) b…

Consider the following multiple regression models A) to D) below. DFemale = 1 if the individual is a female, and is zero otherwise; DMale is a binary variable which takes on the value one if the individual is male, and is zero otherwise; DMarried is a binary variable which equals one for married individuals and is zero otherwise, and DSingle is (1-DMarried). Regressing weekly earnings (Earn) on a set of explanatory variables, you will experience perfect multicollinearity in the following cases unless: