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Mathematical treatment of plates with colony counts outside the acceptable range

机译:菌落计数超出可接受范围的平板的数学处理

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The exclusion of plate counts outside of an acceptable range can bias the estimation of concentration. If these plates are too numerous to count (TNTC), then their microbes may be inhibited. If inhibition of the microbes on a plate is suspected, then its count may be best treated as a lower bound. When these lower bounds replace counts for some plates, the estimate and confidence interval must be calculated accordingly. Also, a measure of unusualness for plate counts is discussed.
机译:排除板数超出可接受范围可能会使浓度估计值产生偏差。如果这些板数太多(TNTC),则可能会抑制其微生物。如果怀疑平板上的微生物受到抑制,则最好将其数量视为下限。当这些下限代替某些板的计数时,必须相应地计算估计值和置信区间。另外,讨论了板数异常的度量。

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