Abstract Most of the commonly used control charts for variables have been developed under the assumption that the observations are coming from a normal population. One of them is ‘Group Runs’ GR control chart to detect shifts in the process mean proposed by Gadre and Rattihalli (Economic...

Abstract In [v. Collani, Theoretical Stochastics, Heldermann Verlag, 2004] the Bernoulli Space is introduced as fundamental model of uncertainty replacing Kolmogorov's probability space which though appropriate for defining a special branch of mathematics has hardly importance for describing...

Abstract Without any particular notice of the worldwide scientific community, two anniversaries of one of the greatest - if not the greatest - heroes of humanity went by this year. 350 years ago the theologian, natural scientist and mathematician Jakob Bernoulli was born in Basel, and 300 years...

Abstract In the past years many companies in the US and Europe have embraced a quality management initiative based on the concept and metrics of “Six Sigma”. Developed as an internal company strategy at Motorola, it was put into action as a quality management program at General Electric and...

Abstract This paper discusses several designing procedures for chain sampling inspection plan (ChSP-1) for given values of AQL and LQL and with associated requirements with respect to the risks. Though, these procedures differ methodologically in arriving at solutions, their common primary aim...

Abstract The distribution of the ratio is derived when X and Y are logistic and Bessel function random variables distributed independently of each other. The distribution is of interest in econometrics, and ranking and selection problems.

Abstract This article deals with estimation of the change-point in a sequence of independent random variables. It is based on a least squares process endowed with a weight function. For finite sample sizes we derive bounds of the error probability. They immediately yield rates of consistency...

Abstract On 27 May 2005 the Draft International Standard ISO/DIS 2210: Milk and milk products - Sampling - Inspection by variables in the presence of measurement error was released. It is a so-called statistical standard aiming at deciding upon acceptance or rejection of incoming lots consisting...

Abstract Statistical tools are believed to be essential for competent quality judgements in the field of nuclear technology as well as in other branches of industry. In comprehensive quality management, these tools comprise not only well-known statistical procedures of quality control for fuel...

Abstract A mine having five quarries needs at least 10 tippers out of 17 to be in running condition for a particular shift. However, with the poor availability of the tippers, the production was hampered. Substantial improvement of availability and utilisation of tippers under the existing...