The situation where a certain type of seed need to be classified into one of three different categories, according to its germination level, can be formulated as the simultaneous test of three statistical hypotheses. In ...

In this article, we propose a biweight approach to a real-life location problem, namely, the estimation of a realistic exchange rate for the Nigerian currency, naira (for easy reference, we denote the exchange rate parameter ...

A class of aligned rank order tests for interaction in two-way layouts is considered. The technique is based on application of the existing nonparametric techniques for one-way layouts to the transformed observations. It ...

An existing Poisson random variate generator is made compact and portable by introducing pre-tests into the rejection routine.

The performance of several test statistics for comparing vectors of propor tions from certain survey data was compared. The statistics were used to analyze a subsample of data from the ‘High School and Beyond’ survey. These ...

The objective of Taguchi's robust design method is to reduce the output variation from the target (the desired output) by making the performance insensitive to noise, such as manufacturing imperfections, environmental ...

The use of graphical methods in the classroom can enhance the learning of multiple regression analysis. The technique of adjusted variables is presented as a method by which the effects of multicollinearity and of variable ...