Determine whether or not the variance in mileage dri ven is statistically the same among the working class and professional (middle income) groups. Use a 5% significance level.

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A grassroots group opposed to a proposed increase in the gas tax claimed that the increase would hurt working-class people the most, since they commute the farthest to work. Suppose that the group randomly surveyed 24 individuals and asked them their daily one-way commuting mileage. The results are as follows.

Determine whether or not the variance in mileage dri
ven is statistically the same among the working class and professional (middle income) groups. Use a 5% significance level.