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Use the following information to answer the next 14 exercises: The mean age for all Foothill College students for a recent Fall term was 33.2. The population standard deviation has been pretty consistent at 15. Suppose that twenty-five Winter students were randomly selected. The mean age for the sample was 30.4. We are interested in the true mean age for Winter
Foothill College students. Let X = the age of a Winter Foothill College student.
Construct a 95% Confidence Interval for the true mean age of P.4nrer Foothill College swderns by working out then answering the next seven exercises.
33. The 95% confidence interval is:__________.
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Chapter 8 Solutions
Introductory Statistics
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- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt
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