QMS 442 Study Guide - Midterm Guide: Design Of Experiments, Null Hypothesis, Flight Controller

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0: y-intercept; the value of e(y) when x = 0, 1: Slope of the line; the change in e(y) for a 1-unit increase in x. Shift parameter; changing the value of 1 shifts the parabola to the right or left (increasing the value of. 1 causes the parabola to shift to the right). 3: the magnitude of 3 controls the rate of reversal of curvature for the polynomial. Complete second-order: e(y) = 0 + 1 x1 + 2 x2 + 0 y intercept, the value of e(y) when x1 = x2 = 0. Where x2 and x3 represent the dummy variables for the qualitative variable at three levels. First order, interaction: e(y) = 0 + 1x1 + 2x2 + 3x3 + Second order, no interaction: e(y) = 0 + 1x1 + 2x1. Complete second order: e(y) = 0 + 1x1 + 2x1. 3x2 + 4x3 + 5x1x2 + 6x1x3 + 7 x1 x3 x2 + 8 x1.