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Unformatted text preview: Outliers An outlier is the values that falls well outside the overall pattern of the data. It might be • the result of a measurement or recording error, • a member from a different population, • simply an unusual extreme value. An extreme value needs not to be an outliers; it might, instead, be an indication of skewness. Identification of the Outliers 1. The values that lie within inner fences are normal values 2. The values that lie outside inner fences but inside outer fences are possible/suspected/ mild outliers 3. The values that lie outside outer fences are sure outliers...
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This note was uploaded on 06/19/2011 for the course ECON 202 taught by Professor Pharuddin during the Summer '11 term at The School of the Art Institute of Chicago.
- Summer '11