In 2007 the New York Times reported that the median annual household income in the United States

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In 2007 the New York Times reported that the median annual household income in the United States was $55,500 (New York Times website, August, 21, 2013). Answer the following questions based on the following sample of 14 household incomes for 2013 ($1000s).

In 2007 the New York Times reported that the median

a. What is the median household income for the sample data for 2013?
b. Based on the sample data, estimate the percentage change in the median household income from 2007 to 2013.
c. Compute the first and third quartiles.
d. Provide a five-number summary.
e. Using the z-score approach, do the data contain any outliers? Does the approach that uses the values of the first and third quartiles and the inter quartile range to detect outliers provide the same results?

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Essentials Of Modern Business Statistics With Microsoft Excel

ISBN: 9781285867045

6th Edition

Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams

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