Quality Assessment in Universities as an organized process is relatively new in Europe (about 30 years old). As many other aspects in education, it is centrally controlled, either by a state agency, or by an independent agency. In the US on the other hand, the top institutions themselves...

In this paper we discuss the basic procedures for the implementation of multivariate statistical process control via control charting. Furthermore, we review multivariate extensions for all kinds of univariate control charts, such as multivariate Shewhart-type control charts, multivariate CUSUM...

The problem of determining how family names evolve preoccupies both statistics and human biology. The determination of a proper and well justified probability model to describe the probability distribution of surnames has been confronted by many authors. In this paper two stochastic models...

In recent years, a lot of attention has been given to the so-called "performance indicators", which are primarily used for institutional comparisons. Education and health are the area in which these indicators are widely applied, serving the needs of modern societies for highly qualified...

The choice of the appropriate linear model before this can be used for planning and decision making, has been the concern of many statistical workers. Most of the methods in the literature aim at evaluating the descriptive ability of the candidate models. In the present paper an evaluation...

An important topic, in electoral studies, is the choice of the electoral system, which will be applied in parliamentary elections, because parliamentary seats distributed to political parties differ when a different system is applied. In this paper we focus on the five latest electoral systems...

Control Charts are the main tools of Statistical Process Control. They are used for deciding whether a process is statistically stable or not. Much theory and many applications have been developed for the Gaussian (Normal) distribution in this area. However, in real data sets we usually face up...

In 1997 the Greek Government introduced a law by which the assessment of the students in Greek Lyceums (High Schools) changed. According to the new law the assessment of the 10th and the 11th grade students is based, for the first time, not only on their in school performance as assessed by...

Control charts are extensively used in many real world applications. Since process parameters are rarely known common practice is to estimate them. Then, the control limits are modified and become actually random variables. In this paper, we deal with the univariate control charts for dispersion...

An empirically verified characteristic of the expanding area of Internet is the longtailness of phenomena such as cpu time to complete a job, call holding times, files lengths requested, inter-arrival times and so on. Extreme values of the above quantities are liable to cause problems to the...