No abstract

Control chart (CC) is used to monitor the special causes that arise during the process monitoring.These special causes produce continual shifts in the process parameters that last until it is identified and removed. There is a need for such techniques, which present the true representation of the entire process. Rational subgrouping is an essential concept in Statistical Process Control (SPC) which is seldom overlooked by the practitioner. Hence, most of the manufacturing, engineering, and production processes give output products in the form of batches over smaller intervals of time. The aim of this study is to provide a median based design for Tukey and Tukey-EWMA control charts under subgrouping. It will use the idea of boxplot to monitor the process behavior. This study also provides a brief discussion regarding selecting and forming subgroups from the process data. The performance of the median based Tukey and Tukey-EWMA charts are judged using Average, Median and Standard-Deviation run-length as performance measures. We have considered subgroup sizes of m=1,5 &10 at pre-specified ARL0 equal to 370. To real-life applications of the median based tukey designs are also presented to show their implementation in food manufacturing and hard-bake processes.2

Ethical consideration has a fundamental importance in conducting any research. It plays an important role, especially in social science. This study is designed to examine the perceptions and practices of research students towards ethical concerns in conducting social sciences research. A survey design was adopted for this study. The population of the study comprised all the public sector universities of Pakistan. The sample of 26 public universities was selected from all administrative areas of Pakistan. Document review was further used to identify ethical concerns in social sciences research and a self-developed questionnaire was used for data collection. This study revealed that students were not completely aware of the ethical norms of their research in social sciences. Most of the research students do not obey the research norm during conducting their study in social sciences. This study also highlights the impact of research aptitude on the quality of research and it helps to improve the performance of students in the context of research.