Ultratrace Metal Analysis in Biological Sciences and by Terence H. (ed) Risby

By Terence H. (ed) Risby

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The aim of determining this coefficient is to assist in assessing whether or not there is a linear dependence of one variable on another. To establish the form of the dependence (or the functional relationship) of the one variable on the other, we perform regression analysis, obtaining values for the regression parameters. 2 Other Notions, their Symbols and Meanings If we have two experimental variables x and y, with mean values xÅ and yÅ, we should distinguish between two cases A and B. Case A: If we have a data set of n pairs of measurements which are essentially the same, although subject to random error (the same measurement repeated), then xÅ and yÅ are the mean, or average, values of the sets.

G. the normal distribution. In such cases it is quite common to perform the v2-test of goodness of fit or the KOLMOGOROV-SMIRNOV test. Both tests are based on the evaluation of the cumulative frequency of measured data and are described in detail in [MILLER and MILLER, 1993]. 2 How to Estimate Correct Sample Sizes Those readers who do not want to be frustrated by the possibility that their past decisions might be based on a number of measurements which was not theoretically correct should skip this section.

2, Part G, Springer, Berlin, 1995 Einax, J. ): Chemometrics in Environmental Chemistry. Applications, in the series: Hutzinger, O. ): Handbook of Environmental Chemistry, Vol. , Devillers, J. , Markert, B. : Luftreinhaltung, Springer, Berlin, Heidelberg, New York, London, Paris, Tokyo, Hong Kong, Barcelona, 1990, p. : Environmental Applications of Chemometrics, ACS Symposium Series, Vol. : Chemometrics. Applications of Mathematics and Statistics to Laboratory Systems, Ellis Horwood, New York, London, Toronto, Sydney, Tokyo, Singapore, 1990, p.

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