X4 is a binary variable equal to one if the employee is a woman and O if the employee is a man. You are interested in testing whether experience and education are jointly significant. Which is the restricted model? Y = Bo+BIX1+BX2 + B3X3 + BAX4 + u Y = BIX1 + B3X3 + u Y = Bo + B3X3 + B4X4 + u Y = Bo + B2X2 + B4X4 + u

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