In January 2009 the unemployment rate in all of New York City was 7.3. The unemployment rates

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In January 2009 the unemployment rate in all of New York City was 7.3. The unemployment rates for the five counties forming New York City were: 9.7, 7.7, 6.7, 6.6, 6.5.
a. Do you think the unemployment rate for the whole city and the mean unemployment rate for the five counties are the same? Explain in detail.
b. Find the mean of the unemployment rates for the five counties of New York City.
c. Explain in detail why the mean of the five counties is not the same as the rate for the whole city.
d. What conditions would need to exist in order for the mean of the five counties to be equal to the value for the whole city?
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Elementary Statistics

ISBN: 9780538733502

11th Edition

Authors: Robert R. Johnson, Patricia J. Kuby

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