Quote:
Originally Posted by wdfifteen
It's quite a stretch to think that out of all the billions of chicken nuggets made, they happened to pick the only two, from two different sources, that contained blood vessels, nerve tissue and bone. If you were looking for trace amounts of something a larger sample would surely be required, but a sample of two is good enough to determine the basic elements that go into the product.
In Zyglo's example, you might have to examine a hundred crankshafts to find out if there was a recurring manufacturing flaw, but you would only have to examine one or two to conclude that they are generally made of steel.
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It's not as though the test samples were from a random sampling of like products prepared by various sources. As reported, the samples were products from two unnamed but well-known fast-food corporations. "Chicken nuggets" aren't made to order. One would assume the recipes for this product are consistent with their respective manufacturing processes. It's the same as an examination of the inside of two golf balls from Nike or Wilson - their construction and materials would represent how they're designed and manufactured.
Granted, examining one out of a million Nike golf balls could be fairly representative - a sampling of two balls with the same result = higher validity. Customers don't expect to ingest randomly-made products, and fast-food manufacturers rely on consistency to attract and retain customers. It's not as though this recent study revealed earth-shaking news. If so, folks should engage more in the pastime of people-watching.
A well-known, but often dismissed film:
YHMV (your health may vary)
Sherwood