For the data in Problem 9, use IBM SPSS to calculate a two-way ANOVA. Problem 9 For Data 19B (Problem 8),calculate the corrected cell means necessary to interpret the interaction effect. Problem 8 An experiment was designed to test the relative effectiveness of a computer-taught method of instruction compared with a conventional lecture method. Two samples of three subjects each were selected from among students of good aptitude and assigned to the two methods of instruction, as shown in Data 19B.Two samples of the same size were selected from among students of ordinary ability and assigned to the same methods of instruction (also shown in Data 19B). In the test trial, the 12 students earned the scores shown in Data 19B. (a) Find ? (b) Find . (c) Calculate the several variance estimates appropriate ate to a two-way ANOVA, and present the results thus far developed in an analysis of variance table. (d) Calculate the Fs required to test the main effects and the interaction effect. Draw the statistical conclusions appropriate when .05 and .01. (e) Calculate the effect size, ?