• Title/Summary/Keyword: testing hypotheses

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Influence of e-HRM and Human Resources Service Quality on Employee Performance

  • NURLINA, N.;SITUMORANG, Jubair;AKOB, Muhammad;QUILIM, Cici Aryansi;ARFAH, Aryati
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.10
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    • pp.391-399
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    • 2020
  • This study aims to analyze the relationship of e-HRM implementation to employee performance both directly and indirectly through the intervening of the Human Resource service Quality variable, both practically and theoretically. This study uses variance-based structural equation modeling (SEM) techniques with partial least square (PLS) statistical testing tools to test the direct relationship of e-HRM and the performance and relationship moderated by Human Resources service quality tested on 200 civil servants in five offices under the coordination of the Government of the South Sulawesi Province of Indonesia. The data collection model in this study uses an online survey. The data analysis stages through the explanatory concept consist of, first, the interpretation of the distribution of the average frequency of respondents' answers; second, outer-loading; third, determination of the validity and reliability; fourth, the coefficient of determination test and partial test; fifth, the GoF model; sixth, validity test; and seventh, hypothesis testing. This study explores four hypotheses in a comprehensive fashion; the results of this study show that all hypotheses have positive and significant effects both through direct and intervening relationships. Among the three direct relationships, the relationship of e-HRM variables on HR Service Quality is greatest and most dominant.

The Effects of Productization, Organizational, Overseas Market Adaptation Competences on Export Performance: Focus on Korean Electromagnetic Wave Shielding Firms (기업의 제품화 역량, 조직역량, 해외시장 적응역량이 수출성과에 미치는 영향: 전자파 차폐 기업을 중심으로)

  • Park, Won-Cheol;Oh, Ka-Young
    • Asia-Pacific Journal of Business
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    • v.11 no.3
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    • pp.307-344
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    • 2020
  • Purpose - The purpose of this study is to examine effects of productization and organizational competences on export performance of electromagnetic shielding companies and to analyze moderating effects of overseas market adaptation competences. For this, hypotheses were established by reviewing previous studies and an empirical analysis was conducted for testing. Design/methodology/approach - For this study, a survey was conducted for workers at electromagnetic shielding companies and 250 valid responses out of 300 questionnaires were aquired. A frequency analysis of related variables was conducted. Through an exploratory factor analysis, validity and reliability tests of measuring tools were conducted and a descriptive statistics was analyzed for collected data result and hypotheses testing. Findings - A correlation analysis was conducted to examine relationships among variables. Construct, convergent and discriminant validities were analyzed after a confirmatory factor analysis and a multi-group confirmatory factor analysis. Finally, with a verified model, the hypotheses and the moderating effects were tested. The results are as follows: First, the productization competence has a positive effect on export performance; Second, the organizational competence has a positive effect on export performance. Especially, the organizational competence has more effect on export performance than the productization competence. Although a development of new technology and product is important in terms of performance, along with these competences, a way of acquiring new skills and knowledge, and internalization and adaptation in organizations have more effect on export performance. Third, overseas market adaptation competence moderates effects of organizational and productization competences. Research implications or Originality - It is necessary to seek out opportunities for workers to participate in actively, such as conferences and seminars, to strengthen organizational competence. It is strongly believed that a constant development of high quality product will contribute to export performance. Lastly, in a policy level, supports on SMEs by governments are to be strengthened by providing with finance and human resource.

A Study on the Relationship between Service Quality, Customer Satisfaction, and Long-term Orientation for Eco-Friendly Car Maintenance Using Service Profit Chain Model: Focusing on Comparison between Internal and External Customers (서비스 이익 사슬 모델을 활용한 친환경 자동차 정비 서비스품질, 고객만족, 장기지향성 간의 관계에 대한 연구: 내부 및 외부 고객 간 비교를 중심으로)

  • Jung Yup Hwang;Chan Kwon Park;Chae Bogk Kim
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.46 no.2
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    • pp.82-101
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    • 2023
  • This study is to identify the maintenance service quality of eco-friendly cars, which are rapidly increasing recently. Research is conducted by synthesizing research from the perspectives of internal employees and external customers by using the service profit chain model. Specifically, it is to study the overall structural relationship between internal customer satisfaction, physical quality, interaction quality, outcome quality, external customer satisfaction and long-term orientation. For the study, 202 questionnaires were collected from internal employees and 204 questionnaires from external customers. The results of testing the research hypotheses targeting the internal employee group are as follows. As a result of testing hypothesis 1, internal customer satisfaction has a significant positive (+) effect on physical quality and interaction quality. As a result of testing hypothesis 2, the service quality of eco-friendly car maintenance has a significant positive (+) effect on each other. As a result of testing hypothesis 3, physical quality and outcome quality have a significant positive (+) effect on external customer satisfaction. The results of testing the research hypotheses targeting an external customer group are as follows. As a result of testing hypothesis 2, in the relationship between eco-friendly car maintenance service quality, physical quality has a significant positive (+) effect on interaction quality, and interaction quality has a significant positive (+) effect on outcome quality. As a result of testing hypothesis 3, interaction quality and outcome quality have a significant positive (+) effect on external customer satisfaction. As a result of testing Hypothesis 4, external customer satisfaction has a significant positive (+) effect only on intention to reuse. Finally, as a result of examining the difference in perception between the internal employee group and the external customer group in eco-friendly car maintenance service quality and external customer satisfaction, it was verified that there was a significant difference only in outcome quality and external customer satisfaction.

EMPIRICAL BAYES TESTING FOR MEAN LIFE TIME OF RAYLEIGH DISTRIBUTION

  • Liang, TaChen
    • Journal of applied mathematics & informatics
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    • v.25 no.1_2
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    • pp.1-15
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    • 2007
  • Consider a Rayleigh distribution with $$pdf\;p(x/{\theta})\;=\;2x{\theta}^{-1}\;{\exp}\;({-x^2}/{\theta})$$ and mean lifetime ${\mu}\;=\;\sqrt{\pi\theta}/2$. We study the two-action problem of testing the hypotheses $H_{0}\;:\;{\mu}{\leq}{\mu}_{0}$ against $H_{1}\;:\;{\mu}\;>\;{\mu}_{0}$ using a linear error loss of ${\mid}{\mu}\;-\;{\mu}_{0}{\mid}$ via the empirical Bayes approach. We construct a monotone empirical Bayes test ${\delta}^{*}_{n}$ and study its associated asymptotic optimality. It is shown that the regret of ${\delta}^{*}_{n}$ converges to zero at a rate $\frac{{\ln}^{2}n}{n}$, where n is the number of past data available when the present testing problem is considered.

Independent Testing in Marshall and Olkin's Bivariate Exponential Model Using Fractional Bayes Factor Under Bivariate Type I Censorship

  • Cho, Kil-Ho;Cho, Jang-Sik;Choi, Seung-Bae
    • Journal of the Korean Data and Information Science Society
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    • v.19 no.4
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    • pp.1391-1396
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    • 2008
  • In this paper, we consider two components system which the lifetimes have Marshall and Olkin's bivariate exponential model with bivariate type I censored data. We propose a Bayesian independent test procedure for above model using fractional Bayes factor method by O'Hagan based on improper prior distributions. And we compute the fractional Bayes factor and the posterior probabilities for the hypotheses, respectively. Also we select a hypothesis which has the largest posterior probability. Finally a numerical example is given to illustrate our Bayesian testing procedure.

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The Fractional Bayes Factor Approach to the Bayesian Testing of the Weibull Shape Parameter

  • Cha, Young-Joon;Cho, Kil-Ho;Cho, Jang-Sik
    • Journal of the Korean Data and Information Science Society
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    • v.17 no.3
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    • pp.927-932
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    • 2006
  • The techniques for selecting and evaluating prior distributions are studied over recent years which the primary emphasis is on noninformative priors. But, noninformative priors are typically improper so that such priors are defined only up to arbitrary constants which affect the values of Bayes factors. In this paper, we consider the Bayesian hypotheses testing for the Weibull shape parameter based on fractional Bayes factor which is to remove the arbitrariness of improper priors. Also we present a numerical example to further illustrate our results.

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Comparison and analysis of multiple testing methods for microarray gene expression data (유전자 발현 데이터에 대한 다중검정법 비교 및 분석)

  • Seo, Sumin;Kim, Tae Houn;Kim, Jaehee
    • Journal of the Korean Data and Information Science Society
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    • v.25 no.5
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    • pp.971-986
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    • 2014
  • When thousands of hypotheses are tested simultaneously, the probability of rejecting any true hypotheses increases, and large multiplicity problems are generated. To solve these problems, researchers have proposed different approaches to multiple testing methods, considering family-wise error rate (FWER), false discovery rate (FDR) or false nondiscovery rate (FNR) as a type I error and some test statistics. In this article, we discuss Bonferroni (1960), Holm (1979), Benjamini and Hochberg (1995) and Benjamini and Yekutieli (2001) procedures based on T statistics, modified T statistics or local-pooled-error (LPE) statistics. We also consider Sun and Cai (2007) procedure based on Z statistics. These procedures are compared in the simulation and applied to Arabidopsis microarray gene expression data to identify differentially expressed genes.

The Impact of Service Quality, Satisfaction, Trust on Customer Loyalty for Mobile Operators in Nigeria

  • Clifford, Umunnakwe;Kim, Gyu-Bae
    • East Asian Journal of Business Economics (EAJBE)
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    • v.7 no.2
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    • pp.31-41
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    • 2019
  • Purpose - This paper examines the major antecedents of customer loyalty for mobile operators in a developing country in Africa especially in Nigeria. This study tests 5 hypotheses about the relationships among service quality, customer satisfaction, trust, and customer loyalty. Research design and methodology - In order to collect the sample data, online survey was conducted via email and social media network. The samples were collected from 415 random respondents. The statistical analyses were done for both assessing the reliability and the validity and testing 5 hypotheses of this study. SPSS version 21 was used for empirical analysis. Results - Service quality has a significant effect on customer satisfaction and service quality has a significant effect on trust also. Customer satisfaction has a significant effect on trust and customer satisfaction has a significant effect on customer loyalty also. Trust has a significant effect on customer loyalty. All of 5 hypotheses were supported. Conclusions - The results of the study show that it is important for marketing managers to manage service quality, customer satisfaction, and trust for improving customer loyalty in mobile service industry. This study also provides some implications for mobile service managers about the importance of customer retention and customer loyalty.

Factors Affecting E-Commerce Usage Intention: Focused on Marketing Strategies for the Elderly (고령자의 전자상거래 이용의도에 영향을 미치는 요인: 고령자 대상 마케팅 전략을 중심으로)

  • Jung, Ji-Hoon;Koh, Joon;Kim, Kyun Soo
    • The Journal of Information Systems
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    • v.26 no.4
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    • pp.355-378
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    • 2017
  • Purpose As elderly people are increasing rapidly in the world, consumption of elderly people is also increasing. However, there have been only marketing strategies for elder citizens centered on off-line. Therefore, apply marketing strategies to e-commerce suitable for the elderly in the future through online. This research was conducted to propose some marketing strategies relevant to elder people in the e-commerce context. Design/methodology/approach This study, for the preliminary research, firstly implemented the in-depth interviews based on prior studies, through preliminary research and analysis of previous research and then some research questions were set. With the research questions, we conducted a survey for elderly people and empirically validated the research model, testing given hypotheses. Findings Among the seven hypotheses, three hypotheses were supported by data analysis. Based upon the findings of this study, in order to do this, we have established a marketing strategy that utilizes e-commerce for elderly people who have purchasing power according to the principle of market economy.

Characteristics and Variables of Nuclear Energy Attitudes of Social Groups (핵에너지 태도의 사회 그룹별 특성과 변수)

  • Kim Ji-Eun;Woo Hyung-Taek
    • Journal of Environmental Science International
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    • v.13 no.10
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    • pp.955-963
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    • 2004
  • This study was conducted to find and explain characteristics of diverse social groups' attitudes toward nuclear power plant. 7 hypotheses were constructed and statistically tested. In order to test 7 hypotheses, both Nuclear Energy Attitude Scale and Environmental Attitude Scale were distributed and field surveyed on 839 respondents representing a diverse range of subject groups. The results showed that 6 hypotheses were statistically accepted while 1 hypothesis statistically rejected. Contrary to the first hypothesis, this test found that people in close proximity to the nuclear power plant had more positive attitudes toward nuclear power than those living in distance from the nuclear power plant. Males had more positive nuclear energy attitudes than females. Academic backgrounds were not related to nuclear energy attitudes. Environmental attitudes showed negative relationship with nuclear energy attitudes. While anti-nuclear citizen action groups had the most negative attitudes, nuclear power plant workers had the most positive attitudes among responding groups. Finally, university students majoring in nuclear engineering had more positive attitudes than those of religious studies.