The following data were observed in an independent- measures study comparing three treatment conditions. 1 4 0 0 6 10 4 4 Treatment 10 14 8 7 8 7 2 III 11 17 16 6 11 10 13 a. Use an ANOVA with a = .05 to determine whether there are any significant differences among the three treatment means. Note: Because the samples are all the same size, MSwithin is the average of the three sample variances. b. Calculate n to measure the effect size for this study.