• Title/Summary/Keyword: T-test analysis

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The Effect of Online Word-of-mouth on Fashion Involvement and Internet Purchase Behavior (온라인 패션 구전에 따른 패션제품 관여와 인터넷 구매행동)

  • Song, So-Jin;Hwang, Jin-Sook
    • Journal of the Korean Society of Clothing and Textiles
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    • v.31 no.3 s.162
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    • pp.410-419
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    • 2007
  • The purposes of this study were to segment consumers by on-line word of month and to find the differences among the segmented groups in regard to fashion involvement, internet perceived risk, and internet purchase behavior. The subjects of this study were female consumers who were members of online cafe in Korea. The data were collected during October, 2004. The respondents returned the questionnaires through internet and 480 questionnaires were finally used in the data analysis. The statistical analyses used for the study were factor analysis, cluster analysis, t-test, and $X^2-test$. The results showed that word-of·mouth communication on internet(e-WOM) is composed of two factors, word-of-mouth transmission and word-of-mouth acceptance. These two factors were put under cluster analysis and were classified into two groups of the word-of·mouth communication: WOM group and non-WOM group. T-test showed that word-of-mouth communication groups were significantly different in regard to fashion involvement, internet perceived risk, and internet purchase behavior. For example, WOM group was more uncertain of their clothing choices, put more weight on the internal factors of clothing selection, and was a frequent purchaser of internet fashion products. Internet fashion business needs to implement the proper marketing strategies based on the results of the study.

A Study on the Elastic Plastic Fracture Analysis for Carbon Steel with a Fatigue Crack (탄소강의 피로균열에 대한 탄소성파괴 해석에 관한 연구)

  • Lee, Jong-Hyung;Jeong, Hyung-Sik;Yoo, Duck-Sang;Kim, Young-Moon
    • Journal of the Korean Society of Industry Convergence
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    • v.9 no.2
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    • pp.117-122
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    • 2006
  • This paper is to provide some of the analysis procedures of the FAD(Failure Assessment Diagram), which is applied th the safety test of the atomic pressure vessels and other structures. Harrison proposed R-6 Diagram, and Bloom developed the method of DPFAD(Deformation Plasticty Failure Assessment Diagram). Analysis of J-integration of the plastic materials give the failure test curve for the materials with serious work hardening effect. J value was obtained form both FEM(Finite Element Mothod) and the experiment using compact type specimen for J=JIC, and the results were compared. In this study, the results of analysis using DPFAD and the factors affecting DPFAD in Static fatigue and fracture were reviewed. It was shown that the concept of DPFAD can be applied to test the safety of the structures.

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Effects of gum elastic bougie in intubation with difficult airway (마네킹을 이용한 어려운 기도에서 부지 기관 내 삽관의 효과)

  • Shim, Gyu-Sik;Bang, Sung-Hwan;Ahn, Hee-Jeong
    • The Korean Journal of Emergency Medical Services
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    • v.24 no.2
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    • pp.123-131
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    • 2020
  • Purpose: This study aimed to find out the effectiveness of gum elastic bougies for intubation in comparison to stylet according to airway type using a manikin. Methods: The study subjects were 52 paramedic students who intubated using a Macintosh laryngoscope and compared stylet and gum elastic bougie use in a 7.5 mmID endotracheal tube, on a manikin with either normal or difficult airway. Difficult airway was made Philadelphia neck collar. Collected data included intubation time, accuracy and ease of intubation, later analyzed by frequency analysis, descriptive analysis, independent t-test, chi square test, paired t-test, and McNemar test using SPSS Statistics 18.0. Results: There was a significant difference in intubation time according to intubation device and airway type (p=.000). There was no significant difference in accuracy of intubation according to intubation device or airway type (normal airway p=1.000, difficult airway p=.052). There was a significant difference in ease of intubation scale according to intubation device and airway type (p=.000, p=.000). Conclusion: Based on the speed and ease of intubation, gum elastic bougie is recommended for intubation in patients with difficult airways such as those with cervical injury.

A Study on Advertising Effects by Advertising Evaluation and Advertising Involvement -Focused on Casual Wear Advertisements of Fashion Magazine- (광고평가와 광고관여에 따른 광고효과 연구 -패션잡지의 캐주얼 의류광고를 중심으로-)

  • 신혜봉;임숙자
    • Journal of the Korean Society of Clothing and Textiles
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    • v.28 no.1
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    • pp.66-75
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    • 2004
  • The purposes of this study was to identify the evaluative dimensions of advertising and to examine the effect of evaluative dimensions of advertising on advertising effects(attitude to advertising/buying intention). The subjects used for the study were 202 female university students. Through the pretest, 15 casual wear brand's advertisements were selected and presented as stimuli. The questionnaire was employed and descriptive statistics, factor analysis, t-test, paired t-test and multiple regression analysis were used for data analysis. The results of this study were as follows. First, 5 evaluative dimensions of advertising were identified; model, message, product, brand and image. The dimension of advertising evaluated most positively was image. Second, the dimensions of advertising that significantly affected the attitude to advertising were model, message and image, whereas the dimensions that affected buying intention were product and brand. The influence of the evaluative dimensions of advertising on the attitude to advertising were different according to advertising involvement.

The Analysis on the Oil Deterioration of Pole-Transformer by Non-Destructive and UV/Visible Method (비파괴 및 비색법에 의한 주상변압기 절연유의 경년열화 분석)

  • 곽회로;남영우;윤영자;권혁일;이동준;송일근;권동진
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 1995.10a
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    • pp.115-117
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    • 1995
  • This paper describes the O.T aging analysis by non-destructive electrical and UV/visible method. Non-destructive diagnosis method is tan8 test. Also the new method of the aging analysis, UV/visible method was introduced in this paper and compared with the non-destructive electrical method. The UV/visible test could be useful method for the O.T aging electrical diagnosis such as non-destructive electrical method.

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A Study on Terminal Values and Money Spending Styles of Girls in Yanbian, China and Those in South Korea (중국 연변조선족 여학생과 한국 여학생의 궁극적 가치와 금전사용양식에 관한 연구 - 연길시와 광주광역시 여학생을 중심으로-)

  • 홍은실;양남희
    • Journal of the Korean Home Economics Association
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    • v.41 no.7
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    • pp.25-38
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    • 2003
  • This study explored the terminal values(Rokeach's Value) and 5-money spending styles of girls in Yanbian, China and those in South Korea. The subjects were 466 school girls in Yanbian, China and 498 high school girls in South Korea. We used Cronbach' α, t-test, and Pearson correlation analysis as statistical analysis. The results were summarized as follows : 1) at the top of the terminal value hierarchy of girls in the two countries were family security and happiness. 2) resulting from the t-test, there found significant differences between the 5-money spending styles of the Yanbian girls and that of the Korean girls. 3) resoling from the Pearson correlation analysis, there found similarities and differences in relationship between terminal values and money spending styles in two groups.

A Study on the Military Uniform Related Attitude and Professional Identity (여군의 군복에 대한 인식과 전문직 자기이미지에 관한 연구)

  • Heo, Eun-Young;Jin, Ki-Nam;Koh, Ae-Ran;Kim, Jin-Joo
    • Journal of the Korean Society of Clothing and Textiles
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    • v.35 no.11
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    • pp.1377-1385
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    • 2011
  • This study examines if the uniform-related perceptions influence the formation of professional identity. A self-administered survey was conducted on 346 female nursing officers at military hospitals. The independent variables were the basic characteristics, perception of clothing benefit, perception of nursing uniform, and perception of the officer uniform. For the data analysis, we used paired t-test and hierarchical regression analysis. Using a paired t-test, we found the difference in function and satisfaction between nursing uniforms and officer uniforms. The result of hierarchical regression analysis shows that uniform-related perceptions were statistically significant in predicting professional identity. The nursing uniform explained the major portion of variation of professional identity; subsequently, the improvement of uniforms can enhance professional identity.

A Study on the Signature Verification Feature by Statistical Analysis (통계적 분석에 의한 서명 특징정보에 관한 연구)

  • Kim, Jin-whan;Cho, Jae-hyun
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.05a
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    • pp.865-867
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    • 2009
  • This paper is a research on the statistical analysis of the feature information for the dynamic signature verification. we could improved processing time and reduce signature database without increase of error rate. We have used statistical analysis method T-test for the verification based on the experimental results.

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Analysis of Improvement Effects for Flight Training Quality (비행훈련 품질 향상을 위한 개선 효과 분석)

  • Kang, Dal Won
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.28 no.4
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    • pp.82-88
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    • 2020
  • Currently, flight training is not only a technical instruction that teaches maneuvering operations, but has expertise equal to that of general disciplines. Therefore, flight instructors must have academic knowledge and flight skills. As flight instructors are the first teacher in flight training for students who have never experienced actual flight control, the behavior of flight instructors will affect the students' flight education. Therefore, the influence of flight instructors for students are quite large compared to other educational institutions. In this study, the factors of instructional behavior were determined, and the actual state of instructional behavior of flight instructors were confirmed through students' survey. Improvements were derived to solve the problems identified in the survey results. For the follow-up analysis, improvements were applied to the flight instructors for 8 months, and then re-question was conducted to the same students who responded to the first questionnaire to find out the difference in results before and after through a paired t-test.

A Study on ESG Perception of Real Estate Managers

  • Sangkyu NOH;Jaetae KIM
    • The Journal of Economics, Marketing and Management
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    • v.11 no.6
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    • pp.23-34
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    • 2023
  • Purpose: This study conducted an empirical study to identify the current status of real estate managers' ESG awareness and to derive recommendations for improvement. Research design, data and methodology: A survey was conducted among those who actually manage real estate assets regardless of region. Descriptive statistical analysis, paired sample t-test, and IPA analysis were conducted using SPSS 27.0 statistical package. Results: The results of the t-test showed that respondents perceived their on-site management achievements to be lower than their perceived importance in all areas of ESG. In the IPA matrix, the mean of achievement is higher than 3, which is moderate. Environment (E) was found to be relatively low in importance. In the Social (S) aspect, the achievement level was low compared to its importance, and Governance (G) was found to be low in importance. Conclusions: Based on the analysis, it seems that policies are needed to emphasize the importance of environmental issues such as greenhouse gas reduction in the environment (E) sector and to strengthen realistic achievement in the social (S) and governance (G) sectors.