orebody, and also only represents a small part of the orebody. According to the
central limit thereom "if a series of samples, of size n, are taken from a population
(not necessarily normal) with mean u, and standard deviation s, then the sample
means will form a distribution which tends to the normal distribution as n increases
whatever the population distribution." I have a copy of Sichel's paper and a sample
of the mean estimate calculation, which I can send you.
You also may wish to consider volume-variance relationships when comparing
the chip sample means and the conveyor belt means, as the sample sizes are
different.
Regards Digby
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