Goveia Inc. is evaluating three possible bonus incentive programs for its sales staff. During a trial period lasting four months, fi ve sales staff members were randomly assigned to each bonus program. Individual sales fi gures (in $millions) are shown below: Program A Program B Program C Sales Sales Sales 10.4 13.3 10.5 8.4 14.7 11.2 8.8 11.6 16.1 13.2 10.5 11.0 11.2 9.9 13.2 10.4 12 12.4 a. Test the hypothesis that average sales for the three populations represented here are the same. Use a signifi cance level of 5%. (Use Expression 13.2 to compute the within-groups sum of squares (SSW) for your analysis.) b. Show the proper ANOVA table summarizing your work in part a