Ppl I really need help!
Please, help me solve it:
Consider the model
Yi = b0 + b1Xi +ei
Z_i = X_i + u_i,
u_i~ N(0,s^2_u) independent of Xi
Suppose we have the following data:
a. A sample M of n units where Y_i, X_i, Z_i obey the above model...