<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The performances of smoking machines of different types cannot be compared directly if different numbers of cigarettes are smoked into one trap, because the respective variabilities are depending on the number of cigarettes smoked into one trap. For the comparison of means, the t-test can therefore not be used directly. It is demonstrated that a generalized t-test can notwithstanding be applied to this problem in most cases, in particular when the standard deviations per cigarette are of the same order of magnitude </p></abstract>

The performances of smoking machines of different types cannot be compared directly if different numbers of cigarettes are smoked into one trap, because the respective variabilities are depending on the number of cigarettes smoked into one trap. For the comparison of means, the t-test can therefore not be used directly. It is demonstrated that a generalized t-test can notwithstanding be applied to this problem in most cases, in particular when the standard deviations per cigarette are of the same order of magnitude

Comparison of the Performances of Different Types of Smoking Machines/Vergleich der Messgenauigkeit von Rauchmaschinen

Institut für Mathematische Statistik und Versicherungslehre der Universität Bern, Switzerland

Contributions to Tobacco & Nicotine Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The performances of smoking machines of different types cannot be compared directly if different numbers of cigarettes are smoked into one trap, because the...

Comparison of the Performances of Different Types of Smoking Machines/Vergleich der Messgenauigkeit von Rauchmaschinen

Published Online: Jul 19, 2014

Page range: 194 - 197

Received: Sep 24, 1971

DOI: https://doi.org/10.2478/cttr-2013-0292

© Beiträge zur Tabakforschung International

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.