Suggested analysis

Using a multivariate analysis of variance check for differences between schools. Use the likelihood ratio test. Also find the canonical F- statistics and discriminant functions.

Plot the painters on the first two discriminant function axes and use the school symbol as a plotting character. Mark in the convex hulls of the schools. Using identify() find interactively some of the painers that appear to lie towards the extremes of the plot, or who deviate considerably from their school mean.