Question: The data set in DS 11.4.2 concerns the gas mileages of four cars. (a) Use the Kruskal-Wallis test procedure to investigate whether any of the

The data set in DS 11.4.2 concerns the gas mileages of four cars.
(a) Use the Kruskal-Wallis test procedure to investigate whether any of the cars are getting better gas mileages than the other cars.
(b) Repeat this analysis using an analysis of variance table.

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