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QUESTION:  What is the difference between User-Defined and Manual Averages?

 

The User-Defined Average function provides a straight average (in which each area is weighed one time) rather than a weighted average (in which each area is weighed according to resident population, workforce population, business population, etc.).

 

Alternately, the individual ERI area regression structures are the result of weighted analyses of survey data.  This also applies to "statewide" or "provincewide" entries in ERI's database.  For example, if you scroll through the Select Area list, please note that "Alabama – Statewide, United States" is listed.  These "statewide" and "provincewide" listings are provided for your convenience and are weighted according to survey population.

 

You may create a statewide or province-wide User Defined Average that is a straight average by selecting just the state, or all counties in a state or all areas in a state.   However, please note that these straight averages may vary from the weighted averages of the predefined statewide and provincewide areas provided for you.