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Title On statistical methods for common mean and reference confidence intervals in interlaboratory comparisons for temperature Author info Viktor Witkovský, Gejza Wimmer, Stanislav Ďuriš Author Witkovský Viktor (34%)
Co-authors Wimmer Gejza 1949- (33%) UMBFP10 - Katedra matematiky
Ďuriš Stanislav (33%)
Source document International Journal of Thermophysics. Vol. 36, no. 8 (2015), pp. 2150-2171. - New York : Springer, 2015 Keywords spoločná stredná hodnota medzilaboratórne porovnávania referenčné hodnoty common mean interlaboratory comparisons benchmarks Language English Country United States of America systematics 510 Annotation We consider a problem of constructing the exact and/or approximate coverage intervals for the common mean of several independent distributions. In a metrological context, this problem is closely related to evaluation of the interlaboratory comparison experiments, and in particular, to determination of the reference value (estimate) of a measurand and its uncertainty, or alternatively, to determination of the coverage interval for a measurand at a given level of confidence, based on such comparison data. We present a brief overview of some specific statistical models, methods, and algorithms useful for determination of the common mean and its uncertainty, or alternatively, the proper interval estimator. We illustrate their applicability by a simple simulation study and also by example of interlaboratory comparisons for temperature. In particular, we shall consider methods based on (i) the heteroscedastic common mean fixed effect model, assuming negligible laboratory biases, (ii) the het Public work category ADC No. of Archival Copy 34273 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
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Title Confidence Interval for Common Mean in Interlaboratory Comparisons with Systematic Laboratory Biases Par.title Konfidenčný interval pre spoločný stred v medzilaboratórnych porovnávaniach so systematickými laboratórnymi vychýleniami Author info Viktor Witkovský, Gejza Wimmer Author Witkovský Viktor (50%)
Co-authors Wimmer Gejza 1949- (50%) UMBFP10 - Katedra matematiky
Source document Measurement Science Review : The Journal of Institute of Measurement Science of Slovak Academy of Sciences. Vol. 7, no. 6 (2007), pp. 64-73. - Bratislava : Slovak Academy of Sciences, 2007 Keywords spoločný stred medzilaboratórne porovnávania medzilaboratórne (kľúčové) porovnávania rozšírená neistota konfidenčné intervaly common mean interlaboratory comparisons key comparisons key comparison reference value (KCRV) expanded uncertainty confidence intervals Language English Country Slovak Republic systematics 51 Annotation Uvažuje sa problém vyhodnotenia výsledkov merania pri medzilaboratórnych porovnávaniach. Predpokladá sa, že laboratória majú normálne, rovnomerne, alebo trojuholníkovo rozdelené vychýlenia. Navrhuje sa približný intervalový odhad pre skutočnú meranú hodnotu. Considered is the problem of evaluation of the measurement results from the interlaboratory comparisons. It is assumed that the laboratories have either normally, uniformly, or triangularly distributed biases. Proposed is an approximate interval estimator for the true measured value Res. angl. URL Link na zdrojový dokument Public work category ADF No. of Archival Copy 9726 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised