It is contract negotiation time, and the Louisiana teachers union wants to argue that its salaries are
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It is contract negotiation time, and the Louisiana teachers union wants to argue that its salaries are the lowest in the region. Because the union has 20,000 members, it must rely on a survey. If the union wants to estimate its members’ mean salary and be 95% sure that the estimate is within $200 of the real mean, how large a sample should the union use? Assume that a preliminary survey estimates the mean as $35,000, with a $1,000 standard deviation.
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The sample should be a simple random sample of size n14 where ...View the full answer
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Related Book For
Applied Statistics For Public And Nonprofit Administration
ISBN: 9781111342807
8th Edition
Authors: Kenneth J. Meier, Jeffrey L. Brudney, John Bohte
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