The nonprofit group Public Agenda conducted telephone interviews with three randomly selected groups of parents of high school children. There were 202 black parents, 202 Hispanic parents, and 201 white parents. One question asked, “Are the high schools in your state doing an excellent, good, fair, or poor job, or don’t you know enough to say?” Here are the survey results:

Do these data provide convincing evidence that the distributions of opinion about high schools differ for the three populations of parents?

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Parents' race/ethnicity Оpinion Black Hispanic White Total about high Excellent 12 34 22 68 schools Good 69 55 81 205 Fair 75 61 60 196 Рoor 24 24 24 72 Don't 22 28 14 64 know Total 202 202 201 605