It is crucially important to differentiate between the descriptive statistics on one side and inferential, inductive, mathematical statistics on the other. Only the latter is useful for obtaining the optimal information and for making effective decisions under conditions of uncertainty, because it defines probabilities of conclusions. That, of course, gains the real importance only in situation...

this study aimed at the frequency and type of using cell-phone by high school students. the research method used was a descriptive-survey one. the statistical society included all the high school students in mazandran in 2010-11 academic year. the sample was chosen through multi-stage stratified random sampling method and 383 subjects were selected based on kerjecie and morgan's table. a r...

PURPOSE Practical statistical issues that should be considered when performing data collection and analysis are reviewed. SUMMARY The meeting with a statistician should take place early in the research development before any study data are collected. The process of statistical analysis involves establishing the research question, formulating a hypothesis, selecting an appropriate test, sampli...

The purpose of this study is to search on the effect of internet and cell phones on youth (15-29 years old) and identity change in MazandaranProvince. The method of study with attention to subject, purpose, questionsand hypothesizes is survey. The Population of this study is all youth in 1529yearsold inMazandaranProvince.ThesamplingisbasedonCohenand others(2001)standardtableandthesampleis cho...

Valid, prior-free, and situation-specific probabilistic inference is desirable for serious uncertain inference, especially in bio-medical statistics. This chapter∗ introduces such an inferential system, called the Inferential Model (IM) framework, proposed recently. IMs do not require a prior to be specified, yet they produce probabilistic inferential results that have desireable frequency prop...

This study investigated the role of women’s economic empowerment on fertility behaviour using Ogbia Local Government Area in Bayelsa State as a case study. The study sought to know how different women’s economic empowerment indicators can affect different fertility behaviour. The Quality-Quantity theory and Feminist patriarchal theory served as the theoretical framework for the study. The sampl...

Directional data is ubiquitious in science. Due to its circular nature such data cannot be analyzed with commonly used statistical techniques. Despite the rapid development of specialized methods for directional statistics over the last fifty years, there is only little software available that makes such methods easy to use for practioners. Most importantly, one of the most commonly used progra...

the purpose of this research was identifying mechanisms for the development of human resources in khouzestan sugarcane agro industrial company, iran. this is an applied study and the research method was descriptive correlative. the population consisted of employees working in the sugarcane agro industrial company in the province of khuzestan, iran(n=315). one hundred and seventy five people wer...