Hi
Kevin,
The
arithmetic mean is probably not a very good measure of central tendancy with
this skewed data. An alternative such as that suggested by Isobel Clark
may be more realistic.
However it may also be benifical to investigate the
root cause. This would seem to be a sampling problem. Is it possible
to increase the size of the the eight samples (Preferably both total split
for pulverising + analyte weight) OR to reduce the particle size of
the 1 ton sample prior to splitting? Because gold is maliable it often
difficult to reduce the partical size, often you only succeed in flattening the
gold particles!
Regards
David Reid
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