search for: fehlerfortpflanzung

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2010 Aug 19
0
Combining means
...e two treatments and calculated an overall mean with overall stdev. But this seems to be a bit of a mistake. Is it? First - I think I need a more robust mean. So I applied the geometric mean. Next I combined the deviations by calculating with the formula for error propagation (wiki german "Fehlerfortpflanzung"). Isn't this a too complicated way? So: 3 technical replicates build one mean with stdev 6 of these build the population of one treatment 2 treatments.... Any suggestions which method I should use and how I perform the calculations? Thanks for your help Best Holger