On the generalized process capability under simple and mixture models

Process capability (PC) indices measure the ability of a process of interest to meet the desired specifications under certain restrictions. There are a variety of capability indices available in literature for different interest variables such as weights, lengths, thickness, and the life time of items among many others. The goal of this article is to study the generalized capability indices from the Bayesian view point under different symmetric and asymmetric loss functions for the simple and mixture of generalized lifetime models. For our study purposes, we have covered a simple and two component mixture of Maxwell distribution as a special case of the generalized class of models. A comparative discussion of the PC with the mixture models under Laplace and inverse Rayleigh are also included. Bayesian point estimation of maintenance performance of the system is also part of the study (considering the Maxwell failure lifetime model and the repair time model). A real-life example is also included to illustrate the procedural details of the proposed method.     

Politics−Bureaucracy Relationship in Bangladesh: Consequences for the Public Service Commission

The paper attempts to analyze the consequences of political pressure placed on the Public Service Commission (PSC) of Bangladesh. Through extensive literature review and empirical research, the authors conclude that the independence, efficiency and effectiveness of the PSC largely depend on the politics–administration relationship. Furthermore, this relationship is affected by regime types and it regulates the optimum functioning or malfunctioning of the institution.

Emerging volunteerism for Indonesian millennial generation: Volunteer participation and responsibility

ABSTRACT

Voluntary activities have been a part of Indonesian society since the pre-independence era until now. Volunteerism began implemented effectively in many countries after the Second World War, including in Indonesia. Currently, voluntary activities have grown in the community social life, especially volunteer involvement in the festival event. This article explores the involvement of young volunteers in the Krakatau Festival. The data were collected from the volunteers who were involved in the festivals. An ethnographic approach implemented to reveal the engagement of the individual during the event conducted. This article identifies the festival as a medium for young volunteers to strengthen self-civic virtue in the life of the millennial generation participation in the community. The result shows that young millennial generation’s activities cannot be separated from engagement with information technology, which can be used to strengthen social integration, active participation, and responsibility.     

Role of Facebook use in predicting bridging and bonding social capital of Pakistani university students

ABSTRACT

The explanatory study aimed to examine the role of Facebook use (intensity of Facebook use, Facebook relationship maintenance behaviors, duration of use, and number of ties), motives of using Facebook (making new social ties, maintaining existing social ties, seeking and sharing information, self-expression, self-documentation, and recreation), and sociodemographic characteristics (age, education, gender, and monthly family income) in predicting the formation of bridging and bonding social capital among youth. Opting Putnam’s theory of social capital, a survey was conducted from eight randomly selected universities of Lahore, Pakistan. A total of 1,245 students, had an average age of 21, were participated in this study. Stepwise multiple linear regression technique was used to explain bridging and bonding social capital. The study found that motives of using Facebook had a major role in predicting bridging and bonding social capital of the students. The intensity of Facebook use and Facebook relationship maintenance behaviors were also positively correlated with bridging and bonding social capital. Except for the age for bonding social capital, no other sociodemographic variables had an influence on bridging and bonding social capital.     

Letter to The Editor: Sigsearch: A New Term for Post Hoc Unplanned Search for Statistically Significant Relationships with The Intent to Create Publishable Findings

Post-hoc secondary data analysis with no prespecified hypotheses has been discouraged by textbook authors and journal editors alike. Unfortunately no single term describes this phenomenon succinctly. I would like to coin the term “sigsearch” to define this practice and bring it within the teaching lexicon of statistics courses. Sigsearch would include any unplanned, post-hoc search for statistical significance using multiple comparisons of subgroups. It would also include data analysis with outcomes other than the prespecified primary outcome measure of a study as well as secondary data analyses of earlier research.     

Quality of Life of Residents Living near Industrial Estates in Singapore

Quality of life (QOL) studies are increasinglygaining the attention of urban planners due toits usefulness in assessing and monitoringpublic policies. With this in mind, an attemptwas made in this study to assess the quality oflife of residents staying near industrialestates in Jurong, Singapore using 18subjective life indicators to measure theoverall life satisfaction.Based on a 5-point Likert scale, health (4.48),family life (4.37) and public safety (4.13)emerged as the more important aspects, whileself-development (3.90), religion (3.60) andpolitics (2.74) were named by the respondentsto be among the least important. On thesatisfaction level, public safety (3.92),family life (3.88), and public utilities (3.78)were deemed to be among the most satisfiedaspects, while consumer goods (2.92), politics(2.91) and environment (2.89) were consideredto be among the least satisfied aspects. Therelationship between the different demographicvariables with overall life satisfaction werealso determined and five variables, namely,marital status, education level, occupation,household income and household size were foundto contribute significantly to the overall lifesatisfaction scores.Overall, the residents in Jurong were found tobe generally satisfied with their life, scoringa mean satisfaction rating of 3.687. It ishoped that the data gathered from this studycan be used by planners in formulating andimplementing future policies.     

Psychological assessment through performance-based techniques and self-reports: a case study of a sexually abused girl at preschool age

We investigated the implicit psychological and behavioral consequences of sexual abuse in an adolescent girl who suffered child sexual abuse at preschool age in this case report. We report the manifestations of this abuse on her personality and psychological functioning using a structured clinical interview and a comprehensive psychological battery including the Beck Anxiety Inventory, the Beck Depression Inventory, the Standard Progressive Matrices, Rorschach Ink Blots, and the Schema Mode Inventory. These investigations were useful in formulating both a diagnosis and a management plan. The girl fulfilled diagnostic criteria for a major depressive episode and borderline personality disorder. This combination of psychological testing may be useful in establishing an accurate multiaxial diagnosis and for understanding the behavioral and psychological sequelae of child sexual abuse in similar cases. The study further suggests that schema-focused therapy is a useful therapeutic tool for individuals who have suffered child sexual abuse at an early age and who have borderline personality disorder.     

Role of the Members of Parliament in the Local Government of Bangladesh: Views and Perceptions of Grassroots in the Case of Upazila Administration

This paper intents to present the overall state of the local government and attention has been drowned particularly on the new commence Upazila in Bangladesh. Attempts have been made to address sensitive issue of debate whether the MPs should have the role in the local government or not as a public representative, whether a democratic Upazila Parishad in Bangladesh enhances its responsive role to the people who elected themselves and the consciousness of the mass people about the elected representatives and their functions and also the expectations of the local people to their elected representatives. The study carried out on the selected eight Upazilas from the prevailing seven divisions in Bangladesh.     

An effective approach to linear calibration estimation with its applications

Abstract

The availability of some extra information, along with the actual variable of interest, may be easily accessible in different practical situations. A sensible use of the additional source may help to improve the properties of statistical techniques. In this study, we focus on the estimators for calibration and intend to propose a setup where we reply only on first two moments instead of modeling the whole distributional shape. We have proposed an estimator for linear calibration problems and investigated it under normal and skewed environments. We have partitioned its mean squared error into intrinsic and estimation components. We have observed that the bias and mean squared error of the proposed estimator are function of four dimensionless quantities. It is to be noticed that both the classical and the inverse estimators become the special cases of the proposed estimator. Moreover, the mean squared error of the proposed estimator and the exact mean squared error of the inverse estimator coincide. We have also observed that the proposed estimator performs quite well for skewed errors as well. The real data applications are also included in the study for practical considerations.