Sign inSubmit
Tips: “quotes” for a phrase · author:Lee · a DOI goes straight to its article

46 results for “Sample Variance”
Set a search alert
Research ArticleOpen accessIn the abstractModeling and Forecasting Volatility of the Malaysian Stock MarketsAhmed Shamiri, Zaidi IsaProblem statement: One of the main purposes of modeling variance is forecasting, which is crucial in many areas of finance. Despite the burgeoning interest in and evaluation of volatility forecasts, a clear consensus on witch volatility model/or distribution specification to use has not yet been reached. Therefore, the out of-sample forecasting ability should be a natural model selection criterion for … …Journal of Mathematics and Statistics, Vol. 5, Issue 3 · 30 Sep 2009 · 7,906 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Impact of CRM on the Customer Satisfaction in Agricultural BankMohammad Ali Sarlak, Rasool Sanavi FardProblem statement: There is much research on this subject, but none of them is about the use of customer relationship management for boosting the bank customer satisfaction. While we have not any study about customer satisfaction in Agricultural Bank especially in Qom providence. Approach: The research method was applied one and from viewpoint of the process, was considered to be … …American Journal of Economics and Business Administration, Vol. 1, Issue 2 · 30 Jun 2009 · 8,181 accessesView PDFCite
Research ArticleOpen accessIn the abstractEstimation of the Mean of Truncated Exponential DistributionFaris Muslim Al-AthariProblem statement: In this study, the researcher considers the problem of estimation of the mean of the truncated exponential distribution. Approach: This study contracted with maximum likelihood and unique minimum variance unbiased estimators and gives a modification for the maximum likelihood estimator, asymptotic variances and asymptotic confidence intervals for the estimators. The properties of these estimators in small, moderate and … …Journal of Mathematics and Statistics, Vol. 4, Issue 4 · 31 Dec 2008 · 7,682 accessesView PDFCite
Research ArticleOpen accessIn the abstractLinear Smoothing of Noisy Spatial Temporal SeriesValter Di Giacinto, Ian dryden, Luigi ippoliti, Luca RomagnoliThe main objective of the study is the development of a linear filter to extract the signal from a spatio-temporal series affected by measurement error. We assume that the evolution of the unobservable signal can be modelled by a space time autoregressive process. In its vectorial form, the model admits a state space representation allowing the direct application of the … …Journal of Mathematics and Statistics, Vol. 1, Issue 4 · 31 Dec 2005 · 6,314 accessesView PDFCite
Research ArticleOpen accessIn the abstractPsychological Effects of Youth Unemployment in GhanaChristopher M. Amissah, Kingsley NyarkoThis study investigated the psychological effects of youth unemployment in Ghana. Youths within the ages of 18 and 35 years in the Greater Accra Region of Ghana constituted the research population. A sample of 362 youths, comprising both the employed (n = 172) and the unemployed (n = 190), were purposively selected. The employed youths served as a control group … …Journal of Social Sciences, Vol. 13, Issue 1 · 8 Mar 2017 · 10,410 accessesView PDFCite
Research ArticleOpen accessIn the abstractPSYCHOLOGICAL DETERMINANTS OF EMOTIONAL EATING: THE ROLE OF ATTACHMENT, PSYCHOPATHOLOGICAL SYMPTOM DISTRESS, LOVE ATTITUDES and PERCEIVED HUNGERPeta Stapleton, Eleanor MackayThe present study aimed to investigate the psychological determinants of emotional eating in a national and international sample of healthy weight, overweight and obese adults (N = 226). Specifically, attachment styles, psychopathological symptom distress and love attitudes were explored for their ability to predict emotional eating. Findings supported the suggestion symptom distress may particularly predispose individuals to engaging in emotionally … …Current Research in Psychology, Vol. 5, Issue 2 · 19 Jan 2015 · 8,469 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffectiveness of Agricultural Extension ActivitiesAli AL-Sharafat, Mohammad Altarawneh, Ebraheem AltahatProblem statement: Jordan’s agricultural extension service is seriously under-staffed and its effectiveness is consequently compromised. Reservations are being expressed about the performance and capability of the agricultural extension system in Jordan. The performance of this sector has been disappointing and has failed to transfer agricultural technology to the farmers. The main objective of this study is to assess the effectiveness … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 2 · 5 Apr 2012 · 9,475 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Study on the Behavior of Volatility in Saudi Arabia Stock Market Using Symmetric and Asymmetric GARCH ModelsAjab Al Freedi, Ahmed Shamiri, Zaidi IsaProblem statement: This study examines several stylized facts (heavy-tailedness, leverage effect and persistence) in volatility of stock price returns exploiting symmetric and asymmetric GARCH family models for Saudi Arabia. Approach: This study is carried out using closing stock market prices over 15 years covering the period 1 January 1994 to 31 March 2009. The sample period is divided into three … …Journal of Mathematics and Statistics, Vol. 8, Issue 1 · 7 Feb 2012 · 7,581 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssessing the Performance of Jordanian Educational Counselors in the Environment of Private and Government Schools toward Gifted StudentsAyed Hanna ZiadatProblem statement: The objective of this research was to evaluate the needs of suitable environment for educational counselors to provide support and enhance the capabilities of gifted students for better education and behavior performance during their academic school years. This study emphasizes with more details on the impact of the educational counselors experience, gender and schools environment regarding the role … …American Journal of Applied Sciences, Vol. 8, Issue 2 · 28 Feb 2011 · 6,959 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Role of Extension in Adopting Solar Energy in Rural Areas Case of Carbon Sequestration ProjectSeyed Jamal F. Hosseini, Zahra SoltaniAbstract: Problem statement: Solar energy as a renewable energy source is considered as an important alternative options for farmers. The development of renewable energy in rural areas faces several challenges. Agricultural extension by its nature has an important role in promoting the adoption of new technologies and innovations. Approach: The main focus of this study is to find out the … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 1 · 31 Jan 2011 · 8,272 accessesView PDFCite