Consider the following balanced data structure: We have four factors A, B, C, D, where A and B are crossed, C is nested in AB and D is nested in C. (1) Draw a structure diagram. (ii) Give all admissible means. (iii) Write out an identity for the individual observation in terms of components obtained from the admissible means. (iv) Write a model in standard notation. (v) Impose side conditions on the parameters to remove overparameterization. (vi) Write out the ANOVA table.