• Title/Summary/Keyword: National statistics

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Good Bank Evaluation by Chernoff Face Analysis using SAS macro faces (SAS macro faces를 사용한 체르노프 얼굴 분석에 의한 좋은 은행 평가)

  • Lee, Jeongeun;Jeong, Hyeseon;Kim, Minji;Kim, Jihyun;Son, Young Sook
    • The Korean Journal of Applied Statistics
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    • v.26 no.6
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    • pp.959-975
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    • 2013
  • The SAS macro faces program by Friendly (1992) is for Chernoff face analysis, which is one of methods for the visualization representation of multivariate data. In this paper, we examined 18 face features used in the program and presented the modified program depending on the definition of a good face in days present. In addition, a good bank evaluation for 15 domestic banks was performed through Chernoff face analysis based on 11 bank economic indicators representing stability, the consumer satisfaction, soundness, and banks profitability.

Detecting Multiple Outliers Using the Gaps of Order Statistics

  • Kim, Hyun Chul
    • Communications for Statistical Applications and Methods
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    • v.2 no.2
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    • pp.184-197
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    • 1995
  • An objective and one-step detection procedure of multiple outliers is suggested by using the gaps of the order statistics. The detection procedure can be used as a routine outlier detection method of a statistical analysis computer program. The procedure is applied to some examples including the data selected by Kitagawa.

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Simultaneous Unit Roots Tests for Both Regular and Seasonal Unit Roots

  • Sinsup Cho;Jeong Hyeong Lee;Young Jin Park;Heon Jin Park
    • Communications for Statistical Applications and Methods
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    • v.4 no.3
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    • pp.663-676
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    • 1997
  • We obtain the simultaneous unit roots test statistics for both regular and seasonal unit roots in a time series with possible seasonal deterministic trends. The limiting distributions of the proposed test statistics are derived and empirical percentiles of the test statistics are tabulated for some seasonal periods. The power and size of the test statistics are examined for finite samples through a Monte Carlo simulation and Compared with those of the Lagrange multiplier test.

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Goodness of Fit Test of Normality Based on Kullback-Leibler Information

  • Kim, Jong-Tae;Lee, Woo-Dong;Ko, Jung-Hwan;Yoon, Yong-Hwa;Kang, Sang-Gil
    • Communications for Statistical Applications and Methods
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    • v.6 no.3
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    • pp.909-918
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    • 1999
  • Arizono and Ohta(1989) studied goodness of fit test of normality using the entropy estimator proposed by Vasicek (1976) Recently van Es(1992) and Correa(1995) proposed an estimator of entropy. In this paper we propose goodness of fit test statistics for normality based on Vasicek ven Es and Correa. And we compare the power of the proposed test statistics with Kolmogorov-Smirnov Kuiper Cramer von Mises Watson Anderson-Darling and Finkelstein and Schefer statistics.

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An Analysis of the Statistics Curricula for the High School in Korea and New Zealand (우리나라와 뉴질랜드의 고등학교 통계 교육과정 분석)

  • Shin, Woo Jin;Ko, Ho Kyoung;Noh, Jihwa
    • Journal of the Korean School Mathematics Society
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    • v.25 no.1
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    • pp.19-38
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    • 2022
  • This study aims to find ways to improve the statistics education policy in Korea for the future based on the results from examining the high school statistics curricula in Korea and New Zealand. The statistics curriculum in New Zealand was analyzed comparatively with the corresponding contents of the probability and statistics domain in the Korea 2015 revised national mathematics curriculum. The analysis centered around achievement goals and key ideas of each of the two curricula. This comparative analysis provides implications on finding a direction in line with the global trend in the curriculum for statistics education and ultimately for Korea's statistics education for the future.

Prediction of the industrial stock price index using domestic and foreign economic indices (국내외 경제지표를 예측변수로 사용한 산업별 주가지수 예측)

  • Choi, Ik-Sun;Kang, Dong-Sik;Lee, Jung-Ho;Kang, Min-Woo;Song, Da-Young;Shin, Seo-Hee;Son, Young-Sook
    • Journal of the Korean Data and Information Science Society
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    • v.23 no.2
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    • pp.271-283
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    • 2012
  • In this paper, we predicted the rise or the fall in eleven major industrial stock price indices unlike existing studies dealing with the prediction of KOSPI that combines all industries. We used as input variables not only domestic economic indices but also foreign economic indices including the U.S.A, Japan, China and Europe that have affected korean stock market. Numerical analysis through SAS E-miner showed above or below about 60% accuracy using the logistic regression and neural network model.

On Distribution of Order Statistics from Kumaraswamy Distribution

  • Garg, Mridula
    • Kyungpook Mathematical Journal
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    • v.48 no.3
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    • pp.411-417
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    • 2008
  • In the present paper we derive the distribution of single order statistics, joint distribution of two order statistics and the distribution of product and quotient of two order statistics when the independent random variables are from continuous Kumaraswamy distribution. In particular the distribution of product and quotient of extreme order statistics and consecutive order statistics have also been obtained. The method used is based on Mellin transform and its inverse.