2.120 Health insurance In 2014, the five-number summary statistics for the distribution of statewide number of people

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2.120 Health insurance In 2014, the five-number summary statistics for the distribution of statewide number of people (in thousands) without health insurance had a minimum of 31 (Vermont), Q1 = 156, median = 418, Q3 = 837, and maximum of 5047 (Texas) (Source: 2015 Current Population Survey Annual Social and Economic Supplement – United States).

a. Is the distribution symmetric, skewed right, or skewed left? Why?

b. The mean of this data is 719 and the range is 5016.

Which is the most plausible value for the standard deviation: -160, 0, 40, 1000, or 5000? Explain what is unrealistic about the other values.

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Statistics The Art And Science Of Learning From Data

ISBN: 9781292164878

4th Global Edition

Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg

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