• Title/Summary/Keyword: 다중가설검정

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A Brief Empirical Verification Using Multiple Regression Analysis on the Measurement Results of Seaport Efficiency of AHP/DEA-AR (다중회귀분석을 이용한 AHP/DEA-AR 항만효율성 측정결과의 실증적 검증소고)

  • Park, Ro-kyung
    • Journal of Korea Port Economic Association
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    • v.32 no.4
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    • pp.73-87
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    • 2016
  • The purpose of this study is to investigate the empirical results of Analytic Hierarchy Process/Data Envelopment Analysis-Assurance Region(AHP/DEA-AR) by using multiple regression analysis during the period of 2009-2012 with 5 inputs (number of gantry cranes, number of berth, berth length, terminal yard, and mean depth) and 2 outputs (container TEU, and number of direct calling shipping companies). Assurance Region(AR) is the most important tool to measure the efficiency of seaports, because individual seaports are characterized in terms of inputs and outputs. Traditional AHP and multiple regression analysis techniques have been used for measuring the AR. However, few previous studies exist in the field of seaport efficiency measurement. The main empirical results of this study are as follows. First, the efficiency ranking comparison between the two models (AHP/DEA-AR and multiple regression) using the Wilcoxon signed-rank test and Mann-Whitney signed-rank sum test were matched with the average level of 84.5 % and 96.3% respectively. When data for four years are used, the ratios of the significant probability are decreased to 61.4% and 92.5%. The policy implication of this study is that the policy planners of Korean port should introduce AHP/DEA-AR and multiple regression analysis when they measure the seaport efficiency and consider the port investment for enhancing the efficiency of inputs and outputs. The next study will deal with the subjects introducing the Fuzzy method, non-radial DEA, and the mixed analysis between AHP/DEA-AR and multiple regression analysis.

The Effects of the Entrepreneurial Activities on Performance Mediated by the Growth Intentions (창업활동이 성장의도를 매개로 기업성과에 미치는 영향)

  • Zhan, Xi;Chung, Dae-Yong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.11
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    • pp.5130-5139
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    • 2012
  • The research purposes is apply to the expectation theory for the China's entrepreneurs want to know the relations model among the entrepreneurial activities, performance and growth intentions. According to the study, all of hypothesis have been suggested. In other words, entrepreneurial activities, growth intentions and performance effects and growth intentions show the mediated effect in the research.

Factor Analysis on the Performance of Hospital Customer Relationship Management (HCRM) System (병원고객관계관리시스템의 성과요인 분석)

  • Chun, Je-Ran
    • Journal of the Korea Convergence Society
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    • v.12 no.5
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    • pp.79-84
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    • 2021
  • The objective of this paper is to find out the factors for the performance of the Hospital Customer Relationship Management (HCRM) system. Furthermore, the relationships between these factors have been analyzed. In order to analyze the performance of the HCRM system, factor analysis with several Key Performance Indicators (KPIs) was conducted. And also multiple regression analysis and Chi-square test were executed. In this study, several hypotheses were derived to analyze the relationships between factors of performance of HCRM system. These hypotheses were tested by using the Structural Equation Model (SEM). As the result of this study, we discovered the HCRM-Infrastructure has positive effects on the HCRM-Performance. And the HCRM-Performance has also positive influences on the hospital management performance. On the basis of the research result, we proposed some suggestions and guidelines for the successful implementation and improvement of HCRM system.

PET-CT study of satisfaction with health services inspector (PET-CT 검사자의 의료서비스 만족도에 관한 연구)

  • Kang, Su-Man;Kim, Kap-Sik
    • Journal of the Korean Society of Radiology
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    • v.5 no.4
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    • pp.207-215
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    • 2011
  • This study was focused to the effects of cancer patient's perceived quality of medical service upon satisfaction as a customer who have been stressed to face the death. we established research model between medical service quality and customer satisfaction, and build up 4 hypotheses between tangibility, expertise, credibility, responsiveness and customer satisfaction. 220 responses were used to analyzed with multiple regression analysis by SPSS for Windows 14.0K. All 4 hypotheses were accepted. Among 4 independent variables tangibility was most effective to customer satisfaction as coefficient-0.298, and next expertise was as coefficient 0.237. From the results we suggested the implications as follows; first, the medical institute have to develop medical service based on tangibility, expertise, credibility, responsiveness. Second, such services might bring higher customer satisfaction. Third, the patient satisfaction may lead to extend its own life. Fourth, the hospital also may survive long against the competitive environment with such services.

Ethnic Differences in the Adjustment to Poverty and Disability among Unmarried Elderly Americans : An Analysis of Multi-State Transitions in Living Arrangements from 1984-1990

  • 박경숙;프랜시스골드샤이더;로저애버리
    • Korea journal of population studies
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    • v.22 no.1
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    • pp.123-151
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    • 1999
  • 미국사회에서 노인의 거주지 적응양식은 인종간에 차이가 크다. 일반적으로 소수인종노인은 백인 노인에 비하여 자녀와 함께 사는 경향이 강하다. 이에 대하여 문화적 입장에서는 소수인종은 백인에 비하여 가족부양규범이 강하다고 주장한다. 다른 한편 경제적 입장에서는 소수인종은 그들의 생애를 지배하는 빈곤 때문에 규모의 경제를 통하여 가계비용을 줄이기 위하여 확대가족을 유지할 수밖에 없다고 주장한다. 본 연구는 노인이 질병과 빈곤에 적응하는 방식에 있어 인종간 차이를 검토함으로써 기존의 경제학적 논의와 문화적 논의의 적합성을 검정하는데 목적을 두고 있다. 이를 위하여 노인의 거주지 적응에 대한 문화적 영향과 관련하여 두가지 가설을 검정하고 있다. 첫째, 소수인종 노인은 백인노인에 비하여 빈곤과 질병상황에서 가족으로부터 더 오랜기간 보호를 받는지를 검토한다. 둘째, 소수인종 노인은 백인노인에 비하여 건강이 악화될 때 더욱 신속하게 가족으로부터 보호를 받을 수 있는지를 검토한다. 분석을 위해서 1984년에서 1990년기간 동안 실시된 "고령화에 대한 종단적 조사(Longitudinal Survey on Aging)"를 이용하여 마르코비안 다중생명표 모형과 사건분석을 수행하였다. 본 연구결과에 따르면 소수인종 노인은 가족부양규범의 문화적 이점을 그다지 크게 다지고 있지 않다. 인종간 사망력과 시설입소의 차이를 통제할 때, 소수인종 노인은 백인노인에 비하여 보다 흔하게 자녀동거에서 단독거주형태로 혹은 그 반대방향으로 거주지 변화를 경험하고 있다. 백인 노인은 소수인종에 비하여 질병상태와 관련하여 자녀와 동거하는 경향이 더 강하다. 사망력과 시설입소의 인종간 차이를 통제할 때 소수인종노인이 백인노인보다 쉽게 자녀동거에서 단독거주로 이행하는데 이는 소수인종에서 가족부양체계가 불안정함을 의미한다. 또한 빈곤시에 소수인종 노인은 백인노인에 비하여 쉽게 자녀와 떨어져 살게 된다. 이러한 결과는 소수인종 노인에 대한 가족의 지원은 그 가족의 경제적 제약속에서 매우 안정적이지 못함을 시사한다. 못함을 시사한다.

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An Empirical Study on the Effect of Internal Marketing on the Job Satisfaction, Organizational Commitment and Turnover Intention in International Logistics Firm: Primarily on International Freight Forwarders (국제물류기업의 내부마케팅이 직무만족, 조직몰입과 이직의도에 미치는 영향에 관한 실증연구 - 복합운송주선업을 중심으로 -)

  • Choi, Young-Ro
    • Journal of Korea Port Economic Association
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    • v.25 no.4
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    • pp.45-62
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    • 2009
  • The purpose of this study is to analyze the components and to verify the relationship among internal marketing, job satisfaction, organizational commitment and turnover intention in international logistics firm. In order to achieve the purpose of this study, literature survey related to internal marketing, job satisfaction, organizational commitment and turnover intention was carried out and took an empirical analysis by the use of questionnaire method for employees in international logistics firm. The final results and conclusions are as follows; Internal marketing of international logistics firm was positively related to job satisfaction and organizational commitment. Internal marketing, Job satisfaction and organizational were negatively related to turnover intention. Through this results, to increase job satisfaction and organizational commitment, and to decrease turnover intention, it is necessary to concentrate on improving internal marketing strategy.

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Further Analyses on the Contemporary Changes of Profitability for the Firms Belonging to the Chaebol in the Republic of Korea (한국 재벌기업들의 수익성 결정요인에 대한 추세적 심층분석)

  • Kim, Hanjoon
    • The Journal of the Korea Contents Association
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    • v.14 no.6
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    • pp.367-384
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    • 2014
  • This study addresses an empirical issue which has been received little attention in the contemporary finance literature: To identify any financial determinants of the profitability indices for the firms belonging to the Korean chaebol. Three hypotheses of concern were postulated and tested for the sample firms covering the periods of the pre-and post-financial global crises. Regarding the results on the 1st hypothesis test of characterizing any financial profiles for the firms (belonging to the chaebols) by estimating a legitimate panel data model: the present study found the statistically significant relationships of the explanatory variables (BVLEVl, MVLEVl, MV/BV, RISK, FCFF and FOS) with the book-value based profitability ratio: while the market-valued profitability index was explained only by BVLEV2. Regarding the 2nd hypothesis test for the profitability of the sample firms at the industry level: the chaebol firms in the chemical and the food industries overall positioned themselves into the top ranks in order, which was tested by the ANCOVA and the Tukey multiple comparison procedure. Finally: on the 3rd hypothesis test for the 'adjusted' Dupont system, only two such as the 'operating margin' and the 'asset turnover' showed their significant effects between the chaebol firms and their counterparts in both the (parametric) independent samples t-test and the (nonparametric) Wilcoxon-Mann-Whitney statistics.

An Empirical Study on the Effect of the Corporate Social Responsibility by Port Operation Organization on the Brand Asset, Reputation and Relationship Performance Perceived by Interested Parties (항만운영주체의 사회적 책임활동이 이해관계자가 지각한 브랜드자산과 평판, 관계성과에 미치는 영향에 관한 실증연구)

  • Seon, Hwa;Kim, Hyun-Deok
    • Journal of Korea Port Economic Association
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    • v.38 no.1
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    • pp.49-71
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    • 2022
  • The purpose of this paper is to study the effect of the corporate social responsibility by port operation organization on the brand asset, reputation and relationship performance perceived by interested parties. To achieve such a purpose, literature survey on various research papers and thesis, research report is carried out and also reliability analysis, validity test and multiple regression analysis using SPSS 18.0 are used. To verify a established research model for empirical analysis and hypotheses, questionnaires are distributed to the port operation organization, terminal operators, shipping companies and NGO. Total 414 copies of questionnaires were collected and used in this analysis. The main results of the study are summarized as below. First, it was confirmed that social responsibility of the port operation organization are classified into three categories; economic, legal, and charitable and ethical responsibility. Second, economic responsibility has a positive impact on the brand awareness and reputation. Third, legal responsibility has a positive impact on the trust and commitment. Fourth, charitable and ethical responsibility has a positive impact on brand image and awareness, reputation, trust and commitment. Further additional empirical research can be extended by distributing more questionnaires including several port operation organizations in Busan and Incheon.

The Effect of Attributes of Selecting Korean Restaurants Pursuant to Food Service Consumption Propensity on Behavioral Intent (외식 소비성향에 따른 한식당 선택속성이 행동의도에 미치는 영향)

  • Jin, Eun-Kyung;Park, Young-Hee;Lee, Jong-Ho
    • Culinary science and hospitality research
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    • v.20 no.1
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    • pp.189-204
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    • 2014
  • This study is aimed to identify the relationship between Korean restaurant selection attributes and behavioral intention regarding foodservice consumption tendency. In order to achieve the purpose of research, frequency analysis, factor and reliability analysis, correlation analysis, cluster analysis, chi-square test, variance analysis, and multiple regression analysis were conducted using SPSS 18.0. As a result of variance analysis, accessibility did not appear to have a significant difference in all clusters, food quality appeared to have a significant result (F=5.587, $p{\leq}.001$), employees' service appeared to have a significant difference (F=5.186, p<.01), and price discounts also showed a significant difference (F=4.921, p<.01). Therefore, the first hypothesis that the foodservice consumption tendency has a difference in the Korean restaurants selection attributes was partially selected. In order to verify the hypothesis that the Korean restaurants selection attributes affect behavioral intention, the sub-factors of the Korean restaurant selection attributes (accessibility of restaurants, food quality, employees' service, price discounts) were set as independent variables, and the behavioral intention of foodservice consumers was set as a dependent variable. As a result, the accessibility of restaurants (${\beta}=.092$) and price discounts (${\beta}=.299$) have a non-significant effect on behavioral intention. However, a significant result was shown in food quality (${\beta}=.379$, p<.001) and employees' service (${\beta}=.251$, p<.001). Thus, the hypothesis that the Korean restaurant selection attributes have a positive effect on behavioral intention was partially selected. Based on the results, foodservice managers need to build up strategic management to improve food quality with better ingredients, sanitation, adequate quantity, and consistent taste of food. In addition, they should provide better service with well-trained employees.

A Critical Review of the Use of Inferential Statistics in Library and Information Science Research in Korea (추론통계를 사용한 문헌정보학 연구에서 데이터 수집과 분석에 관한 비평적 고찰)

  • Ro Jung-Soon
    • Journal of the Korean Society for Library and Information Science
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    • v.40 no.2
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    • pp.217-242
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    • 2006
  • This Study reviewed 86 research articles using inferential statistics published in 2001-2004 in 4 korean core journals in the field of library and information science. Sampling methods, response rates and nonresponse bias, reliability test, and inferential statistic techniques used in the articles were critically reviewed and analyzed. Nonprobability sampling was mostly used. Average response rate was 74.47%. Parametric statistics were mostly used. Some misunderstandings in using each inferential statistics, especially Reliability Test, Multiple Regression, Factor Analysis, MDS, etc. were reported in this study.