Another student analyzed the battery data from Exercise 25, using a one-way ANOVA; He considered the experimental factor to be an 8-level factor consisting of the 8 possible combinations of B and Environment. Here are the box plots for the 8 treat me and a one-way ANOVA:

Compare this analysis with the one performed in Exercise 25. Which one provides a better understanding of the data? Explain.

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S 175 150 125 100 CA CB CC CD RA RB RC RD Treatment Sum of Mean Source DF Squares Square F-ratio P-value Treatment 7 31895.8 4556.54 93.189 <0.000 Error Total 8 391.167 48.8958 15 32286.9