Ratings scandal in Providence?

[Brian Vita]

> in the story, it's intimated that a number of in-tab diaries (6) may
> have
> come from a "media affiliated househould," which is, and long has been,
> a
> big no-no.
[Brian Vita] 
What is the total number of diaries that are sent to a given market that six
make up a statistical significance?  I would think that they'd have enough
out in the market that 6 would end up in the margin of error.
[Brian Vita] 
Brian Vita