• Title/Summary/Keyword: Statistical Decision Making

Search Result 387, Processing Time 0.028 seconds

A Study on the Effects of Decision Making by Data Communication (정보통신이 의사결정에 미치는 효과에 관한 연구)

  • 이종호
    • The Journal of Information Systems
    • /
    • v.5
    • /
    • pp.115-147
    • /
    • 1996
  • 1. Introduction The new computing era started with the various computer technologies and services having been used in communication and automation area since 1980's. We call that era information technology(IT) era. In such era, especially communication plays very important roles in every aspect. So Schoderbek named that era the ege of c2. Therefore, communition became widely used in organizations. Now the majority of organizations have computer-aided communication capabilities that facilitate access to people and information, both within and outside organization. So one objective of this study is to assess the effects of these changes in data communication on decision making. Decision making is the essence of management and is too important to organizational success. This dissertation has three basic objectives: 1)to clarify the concept of data communication, who influences on decision making, and the concept of decision types, managerial and operational, may be affected differently by data communication 2)to investigate whether the effects of data communication upon decision making may be organizational variables. 3)to verify that business and decision types may affect different impact on decision making.2. Hypotheses Four attributes are selected to make hypotheses from the information attributes presented by famous scholars. They are as follows. ①effectiveness ②routinization ③communication easiness ④timeliness Hypotheses are developed according to these attributes, which are chosen from the literature study and theory H1 : Data communication is positively related to the effectiveness of DM H2 : Data communication is positively related to the routinization of DM H3 : Data communication is positively related to the communication easiness of DM H4 : Data communication is positively related to the timeliness of information for DM3. Methodology After pilot study, data are collected from the decision makers in 200 companies located at Seoul and the metropolitan area. A random sample of 174 employees sent back their questionnaires(response rate of 87%). Among them, 151 questionnaires was useful to the analysis of this study(useful rate of 75.5%).4. Conclusion and Discussion Among four proposed hypotheses, all hypotheses are fully supported. They are as follows. 1)effectiveness 2)routinization 3)communication easiness 4)timeliness. So, first objective of this study is proved. Namely, to clarify that the effects of data communication upon DM is fully supported. But they are different from the decision types. Second one is not apparently verfied. i.e. the effect of data communication on the decision variables is not moderated by organizational variables. Third is inspected. The effects of data communication differs from the industry and decision types evidently. This study has many limitations to generalize the statistical results. Since the definition of data communication has broad meanings in reality. So allare not contained in this research. Another restrict in this study is like this. Decision types are usually divided into three types-operational, managerial, strategic DM. But in this study, strategic DM is left out.

  • PDF

Herding Behavior Model in Investment Decision on Emerging Markets: Experimental in Indonesia

  • RAHAYU, Sri;ROHMAN, Abdul;HARTO, Puji
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.8 no.1
    • /
    • pp.53-59
    • /
    • 2021
  • This research aims to examine the model of investor herding behavior in making investment decisions in the Indonesian capital market, which is influenced by social and information impacting on the value of the Book Value Per Share (BVPS). The latest stock market conditions show that most investors make the same error pattern in making investment decisions that result in losses. The experiment involves two independent variables, namely, information about BVPS and social influence. This study used a 2×2 factorial design laboratory experimental method. Data collection was carried out through treatment of a sample of 100 individual investors listed on the Indonesia Stock Exchange. Univariate Two-Way Analysis of Variance (ANOVA) statistical tool was used to test the independent variable on the dependent variable. Research results showed that the social influence originating from expert investors is more influential than the Book Value Per Share (BVPS) information on the behavior of herding investors in making investment decisions. These findings suggest that investors know their psychological factors, thereby increasing self-control and investment analysis skills. Further research can use psychological bias and other indicators of accounting relevant information such as Earning Per Share (EPS) to test herding behavior in investment decision making in the capital market.

The Effects of Self-Leadership on Career Decision-making Self-efficacy and Career Preparation Behavior - Focused on Culinary Major Students - (셀프리더십이 진로결정 자기효능감 및 진로준비행동에 미치는 영향 - 조리전공 대학생을 중심으로 -)

  • Seo, Kyung-Hwa
    • Culinary science and hospitality research
    • /
    • v.23 no.2
    • /
    • pp.146-158
    • /
    • 2017
  • This study conducted a survey to investigate career decision-making self-efficacy, and career preparation behavior related to self-leadership among students major in culinary area. Frequency analysis, factor analysis, reliability analysis and multiple regression analysis were employed using SPSS 16.0 Version statistical package program, and various results were discovered. First, all the subfactors of self-leadership factors (behavior focused, natural reward, and constructive thought strategy) had a positive effect on career decision-making self-efficacy factors (occupational information, goal setting, career planning, problem solving, self-appraisal). Second, all the factors of self-leadership factors (behavior focused, natural reward and constructive thought strategy) had a positive effect on career preparation (information search activity, goal achievement activity). As a result, the study confirmed that strengthening of self-leadership for culinary major college/university students is important predictor for development with career decision-making self-efficacy and career preparation behavior.

A Study on Smartphone Evacuation Guidance Map Criteria through Analysis of Decision-making Time (의사결정시간 분석을 통한 스마트폰 피난안내도 구성요소별 작성기준에 관한 연구)

  • Jeon, Eun-Goo;Bae, Young-Hoon;Jee, Ho-Joon;Son, Jong-Yeong;Park, Joongoo;Hong, Won-Hwa
    • Fire Science and Engineering
    • /
    • v.33 no.5
    • /
    • pp.86-93
    • /
    • 2019
  • Previous studies related to evacuation guidance systems are focused on the system construction, and research on manual of the standard evacuation map is insufficient. Therefore, this research is a basic study to establish the standard evacuation map, and analyzed the decision-making time according to the type and size for each component of the evacuation map. Experimental elements were derived through the review of previous studies and legal regulations. After that, decision-making time was analyzed according to the type and size of the component display method. An experiment was conducted to analyze the decision-making time according to the type and size of the component display method. Afterwards, through the statistical test, the evacuation map guidelines for smartphones were proposed.

A Study on the Importance Analysis of Reliability, Security, Economic Efficiency Factors that Companies Should Determine When Adopting Cloud Computing Services (클라우드 컴퓨팅 서비스 채택 시 기업이 판단해야 하는 신뢰성, 보안성, 경제성 요인의 중요도 분석)

  • Kang, Da-Yeon
    • Journal of Digital Convergence
    • /
    • v.19 no.9
    • /
    • pp.75-81
    • /
    • 2021
  • The purpose of this research is to derive and evaluate priorities for critical factors that must be determined before an enterprise adopts a cloud computing service. AHP analysis techniques were used to reflect decisions made by experts as research methods. AHP is a decision-making technique that expresses complex decision-making problems hierarchically and derives the best alternatives through pairwise comparison between the items of the hierarchy. Compared to the existing statistical decision making techniques, the decision making process is systematic and simple, making it easy to understand. In addition, the procedure is also reasonable by providing an indicator to determine the consistency of the decision maker in the analysis process. The analysis results of this research showed that security was the first priority, reliability was the second priority, and economic efficiency was the third priority. Among the factors in the first-priority security items, the access control rights and the safety factors of external threats are the most important factors. Research results can be used as a guideline in future practice, and it is necessary to evaluate, compare and analyze the satisfaction of companies that have adopted cloud computing services in the future.

A Necessity of Measurement Customer Satisfaction to NSO Products for Enhancing Quality

  • Choi, Kyung-Ho
    • Journal of the Korean Data and Information Science Society
    • /
    • v.16 no.4
    • /
    • pp.781-790
    • /
    • 2005
  • Nowaday, statistical data with coherence, accuracy and timeliness are necessary to government, company and research center for decision making or research. In other words, the importance of statistical data quality is steadily increasing. Thus, in this paper, we suggest necessity of measuring customer satisfaction with NSO products for enhancing quality. And we construct measurement scale for measuring customer satisfaction based on the statistical quality indicators. Also we advise use of structural equation model in relation analysis for statistic quality elevation.

  • PDF

Internet Poll System

  • Kim, Yon-Hyong;Oh, Min-Gweon
    • Communications for Statistical Applications and Methods
    • /
    • v.7 no.3
    • /
    • pp.927-935
    • /
    • 2000
  • In this paper we propose a poll system n the internet. This system expects to increase the confidence of the internet poll results by sampling theory(proportional allocation). This system provides a cross-tale and result of hypothesis test which plays an important role for decision making. These results do offer a few statistical packages(such as SAS, SPSS) in the world wide web.

  • PDF

A Study on the Rationality of Wives' Decision Making in Purchasing - comparisons, Between Working and nonworking Wives- (도시주부의 購買의사결정 합리성에 관한 연구 -취업주부와 비취업주부의 비교분석-)

  • Shim, Sook;Kim, Kee-Ok
    • Journal of Families and Better Life
    • /
    • v.5 no.2
    • /
    • pp.109-125
    • /
    • 1987
  • Previous studies show that working wives in the market contribute to the family economy that affects the family member's behaviors as consumers. Accordingly, the consumer behavior among working wives would be differ form that among nonworking wives. As the number of working wives in the market is increasing, this study focuses on the estimation of the degree of rationality in purchasing decision making among wives in relation to their working status. Therefore, this study attempts to construct an rationality index of a purchasing decision making both at a high and a low involvement situation by working and nonworking wives, and analyzes the differences in the results of the two groups. This study also examines how the rationality indices vary with the selected socioeconomic variables. The data are obtained from self-administered questionnaires from a sample of 217 working and 191 nonworking wives at Seoul and Seongnam in 1986. The statistical methods used in this study are Factor Analysis, Multiple Regression, and Analysis of Variances. The major findings of this study are as follows; 1) The mean value of the rationality index among nonworking wives is higher than that among working wives. Under a high involvement situation, the mean value of the rationality index among working wives is negative. Therefore, it is likely that nonworking wives make purchasing decisions more rationally than working wives. 2) The higher the degree of wive's education, the more rational the purchasing decision making. Under a low involvement situation, the higher the monthly family income, the more rational the purchasing decision making . under the same situation, the shorter the duration of marriage , the more rational the purchasing decision making. 3) Under a low involvement situation, the rationality indices of working wives vary with their occupations. The rationality indices among those in selling and service jobs are lower than those among those in professional jobs. 4) The impact of the selected socio-economic variables on the degree of the rationality in purchasing decision making differs depending on whether the wife is working or not. Under a low involvement situation, the positive impact of the monthly family income on the rationality in purchasing decision making is stronger among nonworking wives than among working wives. Under the same situation, the negative impact of the duration of marriage on the rationality is stronger among nonworking wives than among working wives.

  • PDF

Evaluation of the Confidence and Learning Effects of Dental Hygiene Ethical Decision-Making through Dental Hygiene Ethics Subjects (치위생(학)과 학생들의 치위생윤리 교과목을 통한 치위생 윤리적 의사결정에 대한 자신감과 학습성과 평가)

  • Jung-Hui Son;Sun-Jung Shin
    • Journal of Korean Dental Hygiene Science
    • /
    • v.6 no.2
    • /
    • pp.91-100
    • /
    • 2023
  • Background: This study evaluated the learning outcomes of dental hygiene students' ethical consciousness and ethical decision-making competence through dental ethics courses conducted in some universities. Methods: The subjects were 35 and 29 fourth-year dental hygiene students at G University in the first semester of 2021 and 2022, respectively, and 53 and 43 third-year dental hygiene students at D University, respectively, for a total of 160 students. After implementing the dental hygiene ethics course, classroom performance was evaluated in terms of moral sensitivity, confidence in making ethical decisions, classroom practicality, learning outcomes, and class satisfaction. Statistical analysis was conducted using independent t-test and paired t-test, and the statistical significance level was 0.05. Results: Both universities reported an increase in moral sensitivity and confidence in ethical decision-making after the course (p<0.001). Classroom practicality and class satisfaction for the dental hygiene ethics course did not differ between disciplines and were rated positively with a score of 4 or higher (p>0.05). Learning outcomes were higher among 4-year students than 3-year students (p<0.001). Conclusions: It was evaluated that the ethics in dental hygiene curriculum can strengthen students' competence in ethical decision-making, including moral sensitivity and confidence in solving ethical problems in dental hygiene.

A Study on the policy decision-making for the pilot project of herbal decoctions coverage in the National Health Insurance in 2012 (2012년 첩약 건강보험 급여화 시범사업 정책 결정에 관한 연구)

  • Hong, Minjung;Lim, Byungmook
    • Journal of Society of Preventive Korean Medicine
    • /
    • v.24 no.2
    • /
    • pp.83-94
    • /
    • 2020
  • Backgrounds : To reduce the patients' economic burden of herbal decoctions use, in 2012, Korean government decided to implement the pilot project of herbal decoctions coverage in the National Health Insurance. Objectives : This study aimed to analyze the policy decision-making process for the pilot insurance project in 2012. Methods : Official documents, research papers, statistical reports, and news articles, etc. on the coverage of herbal decoctions were searched and collected. We used the Kingdon's Policy Stream Model to analyze how the policy of pilot project of herbal decoctions coverage was decided, and who were the main activists for the decision-making process. Results : Components to be included in the 'Problem stream' were the decline in the profits of Korean Medicine institutions, the contraction of the herbal decoctions use, and the fiscal surplus of National Health Insurance. In the 'Policy stream', there were several model studies for herbal decoctions coverage, and examples of herbal benefits in other social insurances. In the 'Political stream', there were the legislative initiatives by member of the National Assembly and the promotion of insurance coverage by the Association of Korean Medicine(AKOM), etc. Policy window for herbal decoctions coverage was opened by the combination of these three streams with the efforts of policy activists, such as the executives of AKOM, and policy researchers. Conclusions : The policy decision process for health insurance coverage of herbal decoctions was analyzed using Kingdon's model, and the analysis shows that the combination of political streams and entrepreneurs' competencies can be an important driving force in policy decision making.