Cl. i ii iii iv The linear model in matrix form is: Y1 1 $11 "' 331p J80 61 Y2 1 9321 "' 32p 31 E2 = . + Yn 1 1771.1 ' ' ' 3:12p p En hv' v'hv' EVl Y x 6 . Write the dimensions of Y,x, ,8, and e. . List the three (mathematical) assumptions about the random error term. . List the three (verbal) model assumptions. . The scatterplot below shows simulated data scatter. The true relationship used to generate the data that is, the systematic part of the system or pure signal is displayed in red. The simulated data violate exactly one of the model assumptions. Which one do you think it is, and what pattern do you see in the plot that makes you think so? 100- O 75