The makeup of the student body is 75 % white, 15 % African–American, and 10 % Asian–American. If the samples are randomly selected, the samples’ ethnic distribution should be similar to the ethnic distribution on the campus as a whole. Do the data support that hypothesis? Do a 5 % test.

Use the following information to answer question. A questionnaire was sent to 200 students on the campus, asking them to indicate their ethnic background and give their opinion about race relations on campus. The responses are summarized in the following table.

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Ethnic Background White African-American Asian-American Opinion on race relations Good 40 6 6 So-so 80 8 10 Bad 40 6 14