The International Nanny Association (INA) reports that in a sample of 928 in-home child care providers (nannies),

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The International Nanny Association (INA) reports that in a sample of 928 in-home child care providers (nannies), 128 have passed the INA Nanny Credential Exam (2014 International Nanny Association Salary and Benefits Survey). Use Wilson's adjustment to find a 95% confidence interval for the true proportion of all nannies who have passed the INA certification exam.
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Statistics For Business And Economics

ISBN: 9780134506593

13th Edition

Authors: James T. McClave, P. George Benson, Terry Sincich

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