Arguments about using computer facilities in classroom teaching have received a lot of attention over time. Using the computer facilities will be helpful to demonstrate real-world applications, while poor data or inappropriate case studies might hinder the applications of the computer programs...

When the X ¥ control chart is used to monitor a process, three parameters should be determined: the sample size, the sampling interval between successive samples, and the control limits of the chart. Duncan presented a cost model to determine the three parameters for an X ¥ chart. Alexander et...

The Data Envelopment Analysis method has been extensively used in the literature to provide measures of firms' technical efficiency. These measures allow rankings of firms by their apparent performance. The underlying frontier model is non-parametric since no particular functional form is...

A receiver operating characteristic (ROC) curve is a plot of two survival functions, derived separately from the diseased and healthy samples. A special feature is that the ROC curve is invariant to any monotone transformation of the measurement scale. We propose and analyse semiparametric and...

This paper demonstrates a methodology for estimating the frequencies by which numbers are selected by National Lottery players by utilizing a twofold approach of a Multi-Response Non-Linear Regression model in conjunction with a suggested approximation function for number selections, which leads...

This paper shows how the average run length for a one-sided Cusum chart varies as a function of the length of the sampling interval between consecutive observations, the decision limit for the Cusum statistic, and the amount of autocorrelation between successive observations. It is shown that...

This paper proposes two non-parametric statistics that test for a treatment effect in a heterogeneous population. In the model considered, data on two examinations for both a control and a treatment group are needed to perform the test. The model allows for individual (fixed) effects that may be...

In this paper we present a parsimonious model for the analysis of underreported Poisson count data. In contrast to previously developed methods, we are able to derive analytic expressions for the key marginal posterior distributions that are of interest. The usefulness of this model is explored...

A stepwise Bayesian estimator for the total number of distinct species in the region of investigation is constructed when sampling by elements is used to collect the sample of species. The species in the region are supposed to be divided into two groups: the first containing those species the...

The suitability of incomplete block designs for each complete diallel cross system I, II, III and IV, under the general genetic model is examined, and a set of necessary conditions obtained. In this connection, modifications in available designs are suggested and illustrated. A table of suitable...