Accurate estimation of standard deviations for quantitative methods used in clinical chemistry.
Although the standard deviation is the most widely used measure of the precision of quantitative methods, there is a need to re-examine the conditions necessary to obtain a meaningful estimate of this quantity. The importance of the material to be sampled, the sample size, the calculation of confidence intervals, and the segregation of outliers are discussed.
D002624:Chemistry, Clinical; D006801:Humans; D012964:Sodium / Q000097:blood; D013223:Statistics as Topic
D012964:Sodium