City Fuel Consumption Data Set 14 in Appendix: Data Sets lists city fuel consumption amounts (mi/gal) for cars categorized by size (small, midsize, large). If we use those city fuel consumption amounts arranged into the three separate size categories, we get the XLSTAT results shown here.Using a 0.05 significance level, test the claim that the three size categories have the same mean city fuel consumption. Does the size of a car appear to affect city fuel consumption?

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XLSTAT Analysis of variance: Source DF Sum of squares Mean squares F Pr > F Model 2 209.810 104.905 23.946 <0.0001 Error 18 78.857 4.381 Corrected Total 20 288.667