• Title/Summary/Keyword: T-test analysis

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A Study on the Attitude and the Actual Condition between Housewives and Woman University Students about Furniture Usage and Living Room (거실공간과 가구사용에 대한 주부와 여대생의 의식 및 실태)

  • 임소연
    • Journal of the Korean Home Economics Association
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    • v.33 no.4
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    • pp.289-300
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    • 1995
  • The purpose of this study was to suggest usage that all family members could find satisfaction in the way to use furniture and living room. First of all, methods of research for this purpose were to grip on the points of difference and sameness on the attitude and the actual condition about furniture usage and living room between housewives and woman university students. To make analysis the data, frequency, $\chi$2-test, t-test, F-test and factor analysis were used. The major results are as follows ; 1. There were significant differences in the using time, time zone and life behavior in living room. 2. In furniture usage, housewives and woman university students have significant differences. 3. According to the results of making investigation into degree of satisfaction abut furniture and living room usage, housewives and woman university students have significant differences.

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A Study on Adult Men′s Color-Preference and Color Interest in Clothing -Focusing on Age, personality and Skin Color- (성인남성의 의복색채선호와 색채관심에 관한 연구 -연령, 성격, 피부색을 중심으로-)

  • 류숙희;김보연
    • The Research Journal of the Costume Culture
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    • v.9 no.2
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    • pp.308-318
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    • 2001
  • The purpose of this study is to investigate the clothing interest, the preference for clothing color, in men of their 20s and 30's. The data were obtained from questionnaires completed by 546 men in their 20's and 30s. The SPSS package was used for data analysis which includs factor analysis, t-test, x²-test, Scheffe test, and Cronbach's α to measure the reliability. This study shows the following results. 1. The interest for clothing color was related to individual factors. (age, marriage status, personality). 2. men in their 20's and 30's preferred neutral color, blue, yellow. 3. Men in their 20s and 30s liked monochromatic match in clothing color. 4. The preference for clothing color were appeared to be influenced by the age, personality, skin color.

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A Study on the Consumer's Importance of Store Attributes and Store Choice Behavior according to the Shopping Orientations (소비자의 점포속성 중요도와 점포선택 행동에 관한 연구 - 남녀 대학생의 쇼핑성향을 중심으로 -)

  • 임경복
    • The Research Journal of the Costume Culture
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    • v.9 no.6
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    • pp.807-817
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    • 2001
  • The purpose of this study was to examine the consumer's importance of store attributes and store choice behavior according to the shopping orientations and gender. The data were collected via a questionnaire from students who were attending in Semyung University in Chechoen. The results were analyzed by factor analysis, Cronbach's alpha, cluster analysis, χ²-test, Duncan-test, ANOVA, t-test and multiple regression. The results of this study were as follows; 1 . According to the shopping orientations, consumers were classified into six groups. Each group differed in perferring store attributes and store choice behavior. 2. The significant differences were found in the importance of store attributes and shopping orientations according to the gender. 3. Additionally, importance of store attributes were affected by gender and shopping orientations.

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A Study on Clothing Image, Make-up Image, and Hair Image for Total Fashion (토털 패션을 위한 의복이미지, 메이크업이미지, 헤어이미지에 관한 연구)

  • Choi, Soo-Kyoung
    • Journal of the Korean Society of Costume
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    • v.61 no.6
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    • pp.101-112
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    • 2011
  • The purpose of this study was to investigate the relationships among clothing image, make-up image, and hair image. The Data were collected from 306 women living in Gyeongnam province in June, 2009. Statistical analysis used in this study were frequency, F-test, t-test, Duncan test, factor analysis, Cronbach's ${\alpha}$, correlation coefficient, and multiple regression. The results of this study were as follows.: Three factors of clothing image were titled as elegance, youth, and visibility. Three factors of make-up image were titled as modern, romanticism, and mediocrity. Four factors of hair image were titled as attraction, individuality, gentleness, and cuteness. The clothing image, make-up image, and hair image according to the demographic characteristic of women showed significant difference. The clothing image resulted in correlation with the make-up image and hair image. The clothing image had a influence on the make-up image and hair image.

BAYESIAN HIERARCHICAL MODEL WITH SKEWED ELLIPTICAL DISTRIBUTION

  • Chung, Youn-Shik;Dipak K. Dey;Yang, Tae-Young;Jang, Jung-Hoon
    • Journal of the Korean Statistical Society
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    • v.32 no.4
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    • pp.425-448
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    • 2003
  • Meta-analysis refers to quantitative methods for combining results from independent studies in order to draw overall conclusions. We consider hierarchical models including selection models under a skewed heavy tailed error distribution proposed originally by Chen et al. (1999) and Branco and Dey (2001). These rich classes of models combine the information of independent studies, allowing investigation of variability both between and within studies, and incorporate weight function. Here, the testing for the skewness parameter is discussed. The score test statistic for such a test can be shown to be expressed as the posterior expectations. Also, we consider the detail computational scheme under skewed normal and skewed Student-t distribution using MCMC method. Finally, we introduce one example from Johnson (1993)'s real data and apply our proposed methodology. We investigate sensitivity of our results under different skewed errors and under different prior distributions.

Consideration on data acquisition and analysis system for using short-circuit tests (디지털 측정 및 분석장치의 적용에 관한 연구)

  • Kim, M.H.;Suh, Y.T.;Kim, D.W.;Kang, Y.S.;Koh, H.S.
    • Proceedings of the KIEE Conference
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    • 2001.07a
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    • pp.38-40
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    • 2001
  • Measuring technology based on the computer and software is used worldwideiy by the aids of remarkably improved digital technology and measuring devices, and the electro- magnetic interference due to high currents and high voltages is being solved by the helps of applied optic instrumentation technology. The automatic acquisition, analysis and storage system of test data is available for utilizing the numerical computation technology. The measuring accuracy and testing efficiency are thus much higher because of the developed technologies. In this paper, the construction of data acquisition system in KERI including measuring devices and its application to the short circuit test are described, and additionally the algorithm of the analyzing program for the automatic process of test data and the results of analyses are described.

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A Study on the Relationship between General Creativity and Mathematical Creativity - Based on the TTCT; Figural A and the MCPSAT; A- (일반 창의성(도형)과 수학 창의성과의 관련 연구 -TTCT;Figural A와 MCPSAT;A를 바탕으로-)

  • 이강섭;황동주
    • The Mathematical Education
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    • v.42 no.1
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    • pp.1-9
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    • 2003
  • We examined the relations between Mathematical Creative Problem Solving Ability Test(MCPSAT: Kim etl. 1997) and Torrance Test of Creative Thinking Figural A (TTCT; adapted for Korea by Kim etl. 1999). The subjects in this study were 31 fifth-grade students. In the analysis of data, frequencies, percentiles, t-test correlation analysis were used. The results of the study are summarized as follows; First, we have the correlations between the originality of general creativity and the three elements--fluency, flexibility, and the total--of mathematical creativity (significant at p<.01). Second, We know the correlations between the total of general creativity and the three elements of mathematical creativity(significant at p<.05).

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A Study on Clothing Behavior of Women with and without an Experience of Imported Clothes Purchase - Focusing on shopping orientation and Buying behavior - (수입여성의류 구매유무에 따른 의복행동 - 쇼핑성향과 구매행동을 중심으로 -)

  • 서민애;박광희
    • Journal of the Korean Home Economics Association
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    • v.39 no.6
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    • pp.79-92
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    • 2001
  • The goal of this study is to investigate the consumers'shopping orientation among those who have experience in buying imported clothing and those who have no experience in buying imported foreign clothes, types of clothing they buy (planned purchase, non-planned purchase, impulsive purchasing), purchase behavior, and demographic characteristics. The data were obtained from questionnaires completed by 400 women in the Daegu area whose age was 20 years and older. The SPSS package was used for data analysis which includes a test of reliability, frequency, percentage, factor analysis, t-test, and $\chi$$^2$ test. There were significant differences in clothing shopping orientation, impulsive purchasing, use of information sources, store selection standards between groups who had experience of buying imported clothing and had no experience of it. Also, there were significant differences in education levels, income Levels, marital status between two groups.

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A study on thermo-mechanical behavior of MCD through bulge test analysis

  • Altabey, Wael A.
    • Advances in Computational Design
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    • v.2 no.2
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    • pp.107-119
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    • 2017
  • The Micro circular diaphragm (MCD) is the mechanical actuator part used in the micro electro-mechanical sensors (MEMS) that combine electrical and mechanical components. These actuators are working under harsh mechanical and thermal conditions, so it is very important to study the mechanical and thermal behaviors of these actuators, in order to do with its function successfully. The objective of this paper is to determine the thermo-mechanical behavior of MCD by developing the traditional bulge test technique to achieve the aims of this work. The specimen is first pre-stressed to ensure that is no initial deflection before applied the loads on diaphragm and then clamped between two plates, a differential pressure (P) and temperature ($T_b$) is leading to a deformation of the MCD. Analytical formulation of developed bulge test technique for MCD thermo-mechanical characterization was established with taking in-to account effect of the residual strength from pre-stressed loading. These makes the plane-strain bulge test ideal for studying the mechanical and thermal behavior of diaphragm in both the elastic and plastic regimes. The differential specimen thickness due to bulge effect to describe the mechanical behavior, and the temperature effect on the MCD material properties to study the thermal behavior under deformation were discussed. A finite element model (FEM) can be extended to apply for investigating the reliability of the proposed bulge test of MCD and compare between the FEM results and another one from analytical calculus. The results show that, the good convergence between the finite element model and analytical model.

Nonlinear Failure Analysis of Reinforced Concrete Structures using Fiber Model (파이버모델에 의한 철근콘크리트 구조물의 비선형 파괴해석)

  • 송하원;김일철;변근주
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 1998.04a
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    • pp.127-134
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    • 1998
  • The objectives of this paper is to analyze the reinforced concrete structures by using fiber model. In this study, the fiber modeling techniques including modeling of support conditions are studied. In order to verify the modeling techniques, analysis results obtained for reinforced concrete cantilever beam and reinforced concrete T-girder bridge under cyclic loading are compared with experimental results from full scale test. From the comparison, it is shown that the modeling techniques in this study can be well applied to the nonlinear failure analysis of reinforced concrete structures with porper modifications.

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