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 in Table 13.22. Using a 5% significance level, test the hypothesis that the three mean commuting mileages are the same.

wanting-class 17.8 26.? professional (middle incomes) professional (wealthy) in It... _ \"\" \" \"1-\" \" \"1\" 47 1\" an\" \" p to Table 13.22 \f\f