Quote:
Originally Posted by Bill in Houston
so what would your answer be to his actual question?
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Quote:
Originally Posted by Old Tele man
...mathematically, you need three data sets to average in order to obtain a meaningful "average" value (think of them as: one-too high, one-real, one-too low).
...statistically, you need 30 data sets to determine any (if they exist) trends or relationships.
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three for baseline,
more (30) if he plans on making analyses or predictions (look-up
student-t approximation to normal distribution)
...what he intends to do with the data in the future is the determining factor.