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Estimating the average sample standard deviation from the standard error of the means of a set of samples.

I have a set of composite samples. Each is a composite of 8 charges of material collected in a single weigh boat. The weights were collected for each composite sample and divided by 8 for a mean sample weight. Is it possible to estimate the variation within the composited 8 from the large set of mean sample weights?

Thank you!
Jason

Advanced Statistical Modeling

Basic Data Analysis and Modeling

Quality and Process Engineering

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