Hello,
we estimate width of a membrane by measuring electrical conductivity at various points. The measuring equipment passes three electrical pulses at each point and reports the mean conductivity the standard deviation of the conductivity. This process is repeated in several points of the membrane surface. Our task is to estimate its average width, as well as the stdev. The former is a simple average of the measurements.
How do you estimate the stdev of the width?
Thank you
David
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