An environmentalist wants to examine whether average fuel consumption (measured in miles per gallon) is affected by fuel type (factor A) and type of hybrid (factor B). A two-way ANOVA experiment with interaction is performed. The results are shown in the accompanying table.

a. At the 5% significance level, is there interaction between fuel type and hybrid type?

b. At the 5% significance level, can you conclude that average fuel consumption differs by fuel type?

c. At the 5% significance level, can you conclude that average fuel consumption differs by type of hybrid?

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Car Type Fuel C Fuel A Fuel B 40 47 60 Hybrid I 36 43 50 43 41 52 48 46 49 Hybrid II 48 44 45 51 48 56 31 51 50 Hybrid II 43 42 41 47 38 50