Goveia Inc. is evaluating three possible bonus incentive programs for its sales staff. During a trial period lasting four months, five sales staff members were randomly assigned to each bonus program. Individual sales figures (in $millions) are shown below:

a. Test the hypothesis that average sales for the three populations represented here are the same. Use a significance 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.  

Program C Program A Sales 10.4 8.4 8.8 13.2 11.2 10.4 Program B Sales 13.3 14.7 11.6 10.5 Sales 10.5 11.2 16.1 11.0 13.2 12.4 12