Manipulating the Data File


                  - Sort cases by dicho, then back to sort by id

                  - Omit cases 1-10 and then re-establish them

                  - Change dicho to a string variable (and then back to numeric)

                  - Create a new 6-level IV based on the 6 groups created by the cross of dicho and tricho




                  -  Perform a 1-way ANOVA on dv1 with tricho as the IV

                  -  Split the file by dicho and perform the 1way again

                  -  Unsplit the file (i.e., use all cases)

                 -  Test the linear trend of tricho on dv3.  What can you say about the residual?

                  -  Graph the tricho-dicho interaction