12. Library: Book Circulation The director of library services at Fairmont College did a survey of types of books (by subject) in the circulation library. Then she used library records to take a random sample of 888 books checked out last term and classified the books in the sample by subject. The results are shown next. Percent of Books in Circulation Library on This Subject Number of Books in Subject Area Sample on This Subject Business 32% 268 Humanities 25% 214 Natural science 20% 215 Social science 15% 115 All other subjects 8% 76 Using a 5% level of significance, test the claim that the subject distribu- tion of books in the library fits the distribution of books checked out by students.

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