But that seems to be the exception not the rule. What percentage (0..1) of mass products (counting product line, not item) do you think fails your minimum QA?
I think at least this number fails my QA criteria [pollid:1018]
I think at most this number fails my QA criteria [pollid:1019]
(give 0.0 and 1.0 to see results)
Well, going on research run by a government council rather than a PA firm for a supermarket or retailer...
http://www.leicester.gov.uk/news/news-story-details?nId=81297
Removed actual figure so that people can guess before clicking through.
Press Release
Edit: Soylent's Reply, provided by Trevor_Blake