The director of library services at a college did a survey of types of books (by subject) in the arculation library. Then she used library records to take a random sample of 888 books checked out last term and classifled the books in the sample by subject. The results are shown below. Percent of Books on Subject in Circulation Library on This Subject 32% 25% Number of Books in Subject Area Business Humanities Natural Science Sample on This Subject 287 214 202 106 79 20% Social Science All other subjects 15% 8% Using a 5% level of significance, test the claim that the subject distribution of books in the library fits the distribution of books checked out by students. (a) What is the level of significance?

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