Recent results in experimental and personnel economics indicate that women do not like competitive environments as much as men. This article presents an experimental design which gives participants the opportunity to enter a tournament as part of a team rather than alone. While a large and significant gender gap in entry in the individual tournament is found in line with the literature, no gend...

Some people may be laughing when looking at you reading in your spare time. Some may be admired of you. And some may want be like you who have reading hobby. What about your own feel? Have you felt right? Reading is a need and a hobby at once. This condition is the on that will make you feel that you must read. If you know are looking for the book enPDFd statistical design of experiments with e...

A set of well known necessary conditions for the existence of a large set of t-designs, LS[N ](t, k, v), is N ∣∣∣(v−i k−i) for i = 0, . . . , t. We investigate the existence of large sets of size four. We take advantages of the recursive and direct constructions to show that the trivial necessary conditions are sufficient when N = 4, t = 2, 3 and k ≤ 7.

Virtual teams play an increasingly important role in the modern economy, and many organizations struggle to overcome the weaknesses inherent in technology-mediated work. Identity communication has been shown to greatly improve individualand group-level outcomes in offline settings, but these benefits have not been investigated in the context of virtual teams, where mediated interaction can affe...

For all industrial processes, modelling, optimisation and control are the keys to enhance productivity and ensure product quality. In the current study, the optimization of process parameters for improving the conversion of isoeugenol to vanillin by Psychrobacter sp. CSW4 was investigated by means of Taguchi approach and Box-Behnken statistical design under resting cell conditions. Taguchi desi...

This experiment sought to examine the equivalence of online and paper and pencil testing methods as related to student performance in a computer technology course. Test score and completion time were the dependent variables that were used to assess students’ performance. The study utilized a quasi-experimental design. Test scores were not significantly different on the variables of pretest, age...

Let D be a statistical design consisting of v varieties on b blocks. We say it is binary if a variety occurs at most once on every block. For varieties p and q on blocks x and y respectively, we can obtain design D' from D by interchanging p and q (so p is on y and q is on x). We say that the exchange is binary if either x y, or p q, or: q not on x and p not on y. If D is binary then D' is also...

A project suitable for use as a first and last assignment given in an introductory experimental design course is outlined, and its implementation discussed. Phase 1 of the project is designed to be given at the beginning of a first course in experimental design and involves designing an experiment within instructor-specified parameters based initially on intuition and common sense. Phase 2, at ...