A sample survey asked 202 black parents and201 white parents of high school children

Chapter 0, Problem 21.25

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A sample survey asked 202 black parents and201 white parents of high school children, Are the public high schools in yourstate doing an excellent, good, fair or poor job, or dont you know enough to say?The investigators suspected that black parents are generally less satisfied withtheir public schools than are whites. Among the black parents, 81 thought highschools were doing a good or excellent job; 103 of the white parents felt thisway.15 Is there good evidence that the proportion of all black parents who thinktheir states high schools are good or excellent is lower than the proportion ofwhite parents with this opinion?

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