How electric vehicles can help the developing world

Driving an electric car feels like a game — and that's a good thing

SOLVED: A researcher wishes to see if there is any difference in the fuel economy for city driving among three different types of automobiles: small automobiles, sedans, and luxury automobiles. He randomly samples small automobiles, sedans, and luxury automobiles. The miles per gallon for each type is shown. At a significance level of 0.05, use the analysis of variance test to test the claim that there is no difference among the means.SmallSedanLuxuryState the hypothesis:Find the critical value(