“…Ross et al [14] assume the coefficient of x is 2, x is an N(0, 1) random variable, and the error term is an N(0, 2) random variable. As previously noted, the true locations of A and B are (0, 15) and (10,15), respectively. The true values of the model parameters are β 0 = 1, β 1 = 2, γ 1 = −0.25, and γ 2 = −0.1.…”