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A large university reports that the mean annual salary of parents for students in an undergraduate class is $91,600. To see how this compares to

A large university reports that the mean annual salary of parents for students in an undergraduate class is $91,600. To see how this compares to the whole university, the president surveys 28 randomly selected families and finds that their average annual income is $88,500 with a standard deviaiton is $10,000. Can the president conclude that there is a difference using = 0.10?

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