The true regression is given by the following equation: Y=β_0+β_1 X_1+β_2 X_2+β_3 X_3+β_4 X_4+u_1 However, you omit X1, X3, and X4 and estimate the following regression instead: Y=β_0^*+β_2^* X_2+η The relationship between the omitted variables and X2 is given by the following equations: X_1=ω_0+ω_1 X_2+u_2, X_3=γ_0+γ_1 X_2+u_3, X_4=θ_0+θ_1 X_2+u_4 a) Find the estimated values of B0* and B2* in terms of the true B’s. What is the omitted variable bias term for B0*? What is the omitted variable bias term for B2*? b) Suppose that the true effects of X1, X3, and X4 on Y are given by B1=0.4, B3= -2.4, and B4=3.1. You observe that the relationships between these three variables and X2 are given by ω1=3, γ1=0.5, and ϴ1=0. What is the predicted bias for B2*? Explain your answer as clearly as possible.

Part a what is the area of triangle i? show your calculation. part b triangles i and ii are congruent (of the same size and shape). what is the total area of triangles i and ii? show your calculation. part c what is the area of rectangle i? show your calculation. part d what is the area of rectangle ii? show your calculation. part e rectangles i and iii have the same size and shape. what is the total area of rectangles i and iii? show your calculation. part f what is the total area of all the rectangles? show your calculation. part g what areas do you need to know to find the surface area of the prism? part h what is the surface area of the prism? show your calculation. part i read this statement: “if you multiply the area of one rectangle in the figure by 3, you’ll get the total area of the rectangles.” is this statement true or false? why? part j read this statement: “if you multiply the area of one triangle in the figure by 2, you’ll get the total area of the triangles.” is this statement true or false? why?

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?