[time-nuts] I think I've become a Volt nut too.
Mike Naruta AA8K
aa8k at comcast.net
Tue Jan 12 15:10:07 UTC 2010
Sure Chuck. What I was talking about was a part of statistics
that we in our gnat-hair-splitting compulsive group may forget
about.
Let's assume that our 100,000 standards were carefully
calibrated against THE standard. There is a small amount of
error in the calibration process. Let us even assume that the
error in the calibration process is normally distributed.
It is not impossible that for a sample of 100,000 secondary
standards, that the errors would be all be off in the same
direction, compared to the standard's value.
Now, granted, this would be a small probability indeed. But it
is possible to toss a coin fifty times and have fifty "heads".
The smart bet is that it won't.
Chuck Harris wrote:
> That will only be true of primary standards. Secondary standards
> must be calibrated to some "primary standard". If all 100,000 of
> your secondary standards were calibrated to the wrong value, they
> will all have values that hover around that wrong value.
>
> -Chuck Harris
>
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