e/Efficiency (statistics)

Information
has gloss	eng: In statistics, efficiency is a term used in the comparison of various statistical procedures and, in particular, it refers to a measure of the desirability of an estimator or of an experimental design. The relative efficiency of two procedures is the ratio of their efficiencies, although often this term is used where the comparison is made between a given procedure and a notional "best possible" procedure. The efficiencies and the relative efficiency of two procedures theoretically depend on the sample size available for the given procedure, but it is often possible to use the asymptotic relative efficiency (defined as the limit of the relative efficiencies as the sample size grows) as the principal comparison measure.
lexicalization	eng: efficiency
instance of	(noun) a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters statistics

Meaning
German
has gloss	deu: Effizienz ist ein Begriff in der Statistik, mit dem ein Aspekt der Qualität eines Schätzers für einen unbekannten Parameter bemessen werden kann. Sie zählt neben Konsistenz, Suffizienz und (asymptotischer) Erwartungstreue zu den vier gebräuchlichen Kriterien für die Qualität von Schätzern.
lexicalization	deu: Effizienz
Italian
has gloss	ita: In statistica, lefficienza è una misura di desiderabilità di uno stimatore. Lefficienza di una statistica corretta \ T per un parametro \ \vartheta è definita come: ::\ e(T)=\frac1/\mathcalI}(\vartheta)}\textrmvar}(T)} dove \ \mathcalI}(\vartheta) è l'informazione di Fisher del campione; \ e(T) è uguale al rapporto tra la minima varianza possibile per uno stimatore di \ \vartheta e la sua varianza effettiva. La disuguaglianza di Cramér-Rao implica che \ e(T)\leq 1.
lexicalization	ita: efficienza