4. In a study, there are three independent groups. In Group 1, the scores are 2, 7, and 3; in Group 2, the scores are 5, 4, and 9; in Group 3, the scores are li,9, and 13. a) Using the deviation-score formulae we used in class (for example, -(X - X)*ind SS. ss and SSa. Does S.- SS+ SS.? (Demonstrate this by cakkulating SS from the raw scores.) b) What are the values of dfie, df., and dfina? e) Present the results so far in an ANOVA summary table. Add an ANOVA F test of the hypothesis that the population group means are equal, using alpha -.05. State your conclusions.

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