A survey was given to StatCrunch users on the length of time for commuting and the method of commuting. Assume this is a random sample. Minitab output for one-way ANOVA is given, along with the means and standard deviations. Divide the largest standard deviation (StDev) by the smallest, and explain why you should not use ANOVA on this data set. Assume Normality.

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One-way ANOVA: TimeCom versus How Source DF MS F P How 4 9439 2360 4.28 0.003 Error 130 71722 552 Total 134 81162 Level N Mean StDev Bus 11 30.91 22.34 Car/Truck 94 25.94 22.14 Foot 14 18.93 24.51 Other 4 38.75 14.36 Train 12 52.75 34.02