A test concerning some of the fundamental facts about acquired immunodeficiency syndrome (AIDS) was administered to two groups, one consisting of college graduates and the other consisting of high school graduates. A summary of the test results follows:

Do these data show that the college graduates, on average, scored significantly higher on the test? Use a = 0.05.

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College graduates n 75,r 77.5,s 6.2 High school graduates: 75, 50.4, s 9.4