how do you post a result so it is

the results in this channel skew because people test when they are suspicious. that is selection bias and it is real

underfill is more common than impurity. if you only test purity you are testing the less likely failure

a single sample tells you about a single vial. that is genuinely all it tells you

quantity testing is usually a separate line item and it is the one worth paying for

quantity testing is usually a separate line item and it is the one worth paying for

weigh it first

weigh it first

the widest spread in my data is about 2.6 percentage points across five lots from one supplier

how do you post a result so it is actually useful to somebody in a year

do you test every order or sample it

selection bias

a point or two between the certificate and an independent result is inside what two labs disagree by

update from 5 months ago: retested the same supplier, result came back better, logged both

one bad test does not condemn a supplier. one good test does not clear one. both halves get ignored equally

if you are testing to settle an argument you will not settle it with n of 1

thats within range

thats a fill problem