1. Use matrix multiplication of X and β in equation 9.22 to verify that the linear model in equation 9.21 is obtained. 2. Show that the means model reparameterization for the completely random design...

1. Use matrix multiplication of X and β in equation 9.22 to verify that the linear model in equation 9.21 is obtained.

2. Show that the means model reparameterization for the completely random design is equivalent to imposing the constraint that µ = 0.