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| Cyrus Afzali wrote:
> You gotta hand it to Navvy, he's questioning one of the most
> recognized and prestigious consumer information organizations on the
> planet when he's got no special information on its methodology.
The margin of error for the Consumer Reports survey, assuming an equal
distribution of surveys per metro area, is about 2%.
The respondents, Consumer Reports subscribers, are, as the magazine
states, not necessarily representative of the population as a whole.
They tend to be more highly educated, have higher incomes, and tend to
be more liberal on social issues, but moderate on economic issues.
However there is nothing to indicate that this would skew the results of
one carrier but not another carrier. If the subscriber is more critical
of service company performance, it would hold for all carriers, and if
the subscriber is more forgiving of service company performance it would
hold for all carriers.
>
> That's a composite score of all carriers, Navvy. It in no way reflects
> how big the differences are from one carrier to another. What it DOES
> mean is that people by in large often have a gripe about their
> wireless service.
In some cases the differences were small, in some cases they were
moderate, in some cases they were large, and in some cases they were
very large.
Comparing Verizon and Cingular:
Very large differences
----------------------
Cingular was much worse than Verizon in Los Angeles, Miami,
Minneapolis-St. Paul, Phoenix, San Diego, Tampa, and Washington D.C. (7
cities).
Large differences
-----------------
Cingular was significantly worse than Verizon in Boston, Cleveland,
Detroit, Houston, Philadelphia, and San Francisco (6 cities).
Moderate differences
--------------------
Cingular was moderately worse than Verizon in Atlanta, Chicago, Dallas,
New York, Seattle (5 cities)
Small differences
-----------------
Cingular was slightly worse than Verizon in Denver and Saint Louis (2
cities).
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