Are the mean number of times a month a person eats out the same for whites, blacks, Hispanics and Asians? Suppose that Table 12.37 shows the results of a study.

Assume that all distributions are normal, the four population standard deviations are approximately the same, and the data were collected independently and randomly. Use a level of significance of 0.05.

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White Black Hispanic Asian 6 4 7 8 8 1 3 3 2 5 5 5 4 2 4 1 6 6 7 Table 12.37