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Dissertations / Theses on the topic 'Statistics'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Tauber, Vojtěch. "Vývoj právní úpravy postavení a organizace statistické služby v Československu 1918 - 1938." Master's thesis, Vysoká škola ekonomická v Praze, 2015. http://www.nusl.cz/ntk/nusl-201593.

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This diploma thesis examines the legislation of the status and organisation of the statistical service in Czechoslovakia in the years 1918-1938 which has lacked sufficient exploration. In this period, statistics referring to public administration was centralised and under the responsibility of the State Statistical Council and the State Statistical Office. These institutions are given special attention, particularly issues associated with their intricate aspects: personnel, budget and location. While the State Statistical Office was one of the central government authorities in Czechoslovakia,

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2

Kazlauskienė, Aušra. "Pradinių klasių mokinių statistinių gebėjimų ugdymas." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050902_110922-16508.

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The problem of the research is systematic approach and accessibility of the content of developing statistical skills for primary school pupils. The content of developing elements of statistical skills and probability theory integrates pupils’ mathematical skills, knowledge of the content of other subjects, general skills of cognition and their personal experience, therefore it is a general problem of primary education; A system of items intended for teaching elements of statistics and probability theory is valid and accessible for pupils provided it covers: - technical skills of statistics

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3

Holmberg, Anders. "Essays on Model Assisted Survey Planning." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3417.

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4

Wiberg, Marie H. "Computerized achievement tests : sequential and fixed length tests." Doctoral thesis, Umeå universitet, Statistiska institutionen, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-148.

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The aim of this dissertation is to describe how a computerized achivement test can be constructed and used in practice. Throughout this dissertation the focus is on classifying the examinees into masters and non-masters depending on their ability. However, there has been no attempt to estimate their ability. In paper I, a criterion-referenced computerized test with a fixed number of items is expressed as a statistical inference problem. The theory of optimal design is used to find the test that has the strongest power. A formal proof is provided showing that all items should have the same item

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5

Marohn, Frank [Verfasser]. "On statistical information of extreme order statistics / Frank Marohn." Würzburg : Universität Würzburg, 2010. http://d-nb.info/1101947373/34.

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6

Obryant, Monique J. "How Attitudes towards Statistics Courses and the Field of Statistics Predicts Statistics Anxiety among Undergraduate Social Science Majors: A Validation of the Statistical Anxiety Scale." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc1011855/.

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The aim of this study was to validate an instrument that can be used by instructors or social scientist who are interested in evaluating statistics anxiety. The psychometric properties of the English version of the Statistical Anxiety Scale (SAS) was examined through a confirmatory factor analysis of scores from a sample of 323 undergraduate social science majors enrolled in colleges and universities in the United States. In previous studies, the psychometric properties of the Spanish and Italian versions of the SAS were validated; however, the English version of the SAS had never been assesse

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7

Hardy, James C. (James Clifford). "A Monte Carlo Study of the Robustness and Power Associated with Selected Tests of Variance Equality when Distributions are Non-Normal and Dissimilar in Form." Thesis, University of North Texas, 1990. https://digital.library.unt.edu/ark:/67531/metadc332130/.

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When selecting a method for testing variance equality, a researcher should select a method which is robust to distribution non-normality and dissimilarity. The method should also possess sufficient power to ascertain departures from the equal variance hypothesis. This Monte Carlo study examined the robustness and power of five tests of variance equality under specific conditions. The tests examined included one procedure proposed by O'Brien (1978), two by O'Brien (1979), and two by Conover, Johnson, and Johnson (1981). Specific conditions included assorted combinations of the following factor

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8

Johnson, Eric P. "Composite strength statistics from fiber strength statistics." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/26420.

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Utilization of composites in critical design applications requires an extensive engineering experience data base which is generally lacking, especially for rapidly developing constituent fibers. As a supplement, an accurate reliability theory can be applied in design. This investigation is a part of a research effort to develop a probabilistic model of composite reliability capable of using data produced in small laboratory test samples to predict the behavior of large structures with respect to their actual dimensions. This work included testing of composite strength which was then used in ex

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9

Lee, Yun-Soo. "On some aspects of distribution theory and statistical inference involving order statistics." Virtual Press, 1991. http://liblink.bsu.edu/uhtbin/catkey/834141.

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Statistical methods based on nonparametric and distribution-free procedures require the use of order statistics. Order statistics are also used in many parametric estimation and testing problems. With the introduction of modern high speed computers, order statistics have gained more importance in recent years in statistical inference - the main reason being that ranking a large number of observations manually was difficult and time consuming in the past, which is no longer the case at present because of the availability of high speed computers. Also, applications of order statistics require in

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10

Kim, Woosuk. "Statistical Inference on Dual Generalized Order Statistics for Burr Type III Distribution." University of Cincinnati / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1396533232.

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11

Carlqvist, Håkan. "Multiscale analysis of multi-channel signals." Doctoral thesis, KTH, Matematik (Avd.), 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230.

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I: Amplitude and phase relationship between alpha and beta oscillations in the human EEG We have studied the relation between two oscillatory patterns within EEG signals (oscillations with main frequency 10 Hz and 20 Hz), with wavelet-based methods. For better comparison, a variant of the continuous wavelet transform, was derived. As a conclusion, the two patterns were closely related and 70-90 % of the activity in the 20 Hz pattern could be seen as a resonance phenomenon of the 10 Hz activity. II: A local discriminant basis algorithm using wavelet packets for discrimination between classes of

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12

Gustavsson, André. "Elpriserna på den nordiska elbörsen : Prognosmodellering med hjälp av ARIMA-modeller." Thesis, Umeå University, Department of Statistics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34820.

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13

Johansson, Mikael, and Erik Jönsson. "Evaluating a cumulative voting process : An analysis of different approaches." Thesis, Umeå University, Department of Statistics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34822.

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14

Wennberg, Jessica. "Möjligheternas kommun? : En analys av den framtida bostadsförsörjningen i Pajala Kommun." Thesis, Umeå University, Department of Statistics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34823.

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15

Gustavsson, André. "Prognossäkerhet : Tillför en heteroskedastisk modell någon säkerhet hos Box och Jenkins prognosmodeller?" Thesis, Umeå University, Department of Statistics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34825.

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16

Lindmark, Anita. "Reliabilitet hos metoder för mätning av avstånd mellan sekvenser : En simuleringsstudie i R-paketet TraMineR." Thesis, Umeå University, Department of Statistics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34826.

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17

Andersdotter, Persson Anna. "Kalibrering som ett sätt att hantera bortfall : Vilken korrelation krävs mellan hjälp- och responsvariabler?" Thesis, Umeå University, Department of Statistics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34827.

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18

Andersson, Björn. "Consequences of near-unfaithfulness in a finite sample : a simulation study." Thesis, Umeå University, Department of Statistics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34828.

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19

Hägg, David, and Henrik Olsson. "Komorbida sjukdomar hos individer med svår psoriasis : En analys med logistiska och loglinjära modeller." Thesis, Umeå University, Department of Statistics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34829.

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20

Lindberg, Fredrik. "Den demografiska utvecklingen i dagens Sverige : Konsekvenser för den framtida försörjningsbördan." Thesis, Umeå University, Department of Statistics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34830.

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21

Boberg, Lina. "Fertilitet och mortalitet i 1700- och 1800-talets Skellefteå : En modelleringsstudie." Thesis, Umeå University, Department of Statistics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34831.

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22

Ferm, Martin. "Prediktering av skogliga variabler med data från flygburen laser : En jämförelse mellan multipla regressionsmodeller och k nearest neighbour-modeller." Thesis, Umeå University, Department of Statistics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34833.

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23

Kang, Jian. "Analysis of Temperature and Carbon Dioxide Based on Ice Core Data." Thesis, Uppsala University, Department of Statistics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-126771.

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<p>It is widely considered that the raise of carbon dioxide is a main causeof global warming, but nature scientific has not provided us the completeand precise causes of this phenomenon. We would like to analyze whetherthere exists long-term causality between temperature and carbon dioxidewith the Vostok Ice-Core data from 400,000 years ago to 6,000 years ago.According to the properties of data, intervention analysis and time seriesanalysis with exponential time trend are applied as the methods of univariateanalysis, so that we can fit the deterministic time trends of data,and we select the ti

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24

Ekström, Joakim. "Contributions to the Theory of Measures of Association for Ordinal Variables." Doctoral thesis, Uppsala universitet, Statistik, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-100735.

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In this thesis, we consider measures of association for ordinal variables from a theoretical perspective. In particular, we study the phi-coefficient, the tetrachoric correlation coefficient and the polychoric correlation coefficient. We also introduce a new measure of association for ordinal variables, the empirical polychoric correlation coefficient, which has better theoretical properties than the polychoric correlation coefficient, including greatly enhanced robustness. In the first article, entitled ``On the relation between the phi-coefficient and the tetrachoric correlation coefficient'

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25

Rota, Bernardo Joao. "USING FINITE MIXTURE OF MULTIVARIATE POISSON FOR DETECTION OF MEASUREMENT ERRORS IN COUNT DATA." Thesis, Örebro universitet, Handelshögskolan vid Örebro universitet, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-12562.

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26

Sahl, Åsa. "Age Cohort Effects on Measles, Mumps and Rubella Seroimmunity in Swedish Childbearing Women." Thesis, Örebro universitet, Handelshögskolan vid Örebro universitet, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-15785.

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27

Lundell, Love, and Victor Ståhl. "Transferfunktionsmodeller modellering och prognoser av Sjötransportindex." Thesis, Örebro universitet, Handelshögskolan vid Örebro universitet, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-15908.

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We have by Statistics Sweden (SCB) been given the task of using different dynamic regression models in order to forecast service price index for sea transport. The aim is to see whether these models provide better forecasts than those previously used. This essay aim to identify, estimate and evaluate the selected prediction models. Through our data material we were given access to 28 sightings of sea transport index during the period of 2004 q1 to 2010 q4. We have chosen to evaluate three different transfer function models, one ARIMA model and one naive forecasting model. The input variables

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28

Petric, Milica. "ON THE EFFECTS OF THE FOLLOW-UP IN THE STATISTICS SWEDEN SURVEY OF HOUSEHOLD FINANCES." Thesis, Örebro universitet, Handelshögskolan vid Örebro universitet, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-16540.

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29

Strömberg, Karolin. "En jämförande studie av konsumentgruppers värderingar av miljö- och ursprungsmärkning avmatfisk." Thesis, Örebro universitet, Handelshögskolan vid Örebro universitet, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-17183.

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30

Whitehead, Andile. "Statistical-thermodynamical analysis, using Tsallis statistics, in high energy physics." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/13391.

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Includes bibliographical references.<br>Obtained via the maximisation of a modified entropy, the Tsallis distribution has been used to fit the transverse momentum distributions of identified particles from several high energy experiments. We propose a form of the distribution described in Cleymans and Worku, 2012, and show it to be thermodynamically consistent. Transverse momenta distributions and fits from ALICE, ATLAS, and CMS using both Tsallis and Boltzmann distributions are presented.

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31

Strnadová, Lenka. "Statistika a její využití (zneužití) při tvorbě informací." Master's thesis, Vysoká škola ekonomická v Praze, 2014. http://www.nusl.cz/ntk/nusl-194698.

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This diploma thesis is focused on how statistics and statistical concepts can be abused to influence a public opinion. The thesis includes theoretical knowledge regarding to statistics, public opinion and institutions which are commonly used as a source of statistical data. A questionnaire was used for a practical part of the diploma thesis. The questionnaire should answer research questions included in the introduction. MS Excel and SAS EG 5.1 were used to process a questionnaire data. There was chosen one or several examples of use and abuse of statistics in creation of information for influ

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32

Frey, Jesse C. "Inference procedures based on order statistics." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1122565389.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xi, 148 p.; also includes graphics. Includes bibliographical references (p. 146-148). Available online via OhioLINK's ETD Center

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33

Thulin, Måns. "On two classic problems in statistics." Licentiate thesis, Uppsala universitet, Matematisk statistik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-171962.

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34

Vaitkevičius, Robertas. "Duomenų kompiuterinės statistinės analizės technologijos." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080929_140053-98826.

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Darbo „Duomenų kompiuterinės statistinės analizės technologijos“ tikslas – išanalizuoti ir palyginti įvairių populiarių statistinių paketų galimybes bei pateikti rekomendacijas vartotojui. Šiame darbe buvo išanalizuoti SPSS 8.0 for Windows, STATISTICA 7 ir Minitab 15 English statistiniai paketai. Atlikti statistiniai skaičiavimai su anketos „Apie tai, kaip tu gyveni“ duomenimis, panaudojant minėtus statistinius paketus. Įvertintos šių statistinių paketų galimybės. Sudarytos statistinių paketų lyginamosios analizės lentelės. Pateiktos rekomendacijos vartotojui, padedančios jam pagrįstai pasirin

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35

Slob, Wout. "Strategies in applying statistics in ecological research /." Amsterdam : Free University Press, 1986. http://bibpurl.oclc.org/web/28544.

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36

Wang, Baoyong. "Fractionation Statistics." Thèse, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31001.

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Paralog reduction, the loss of duplicate genes after whole genome duplication (WGD) is a pervasive process. Whether this loss proceeds gene by gene or through deletion of multi-gene DNA segments is controversial, as is the question of fractionation bias, namely whether one homeologous chromosome is more vulnerable to gene deletion than the other. As a null hypothesis, we first assume deletion events, on one homeolog only, excise a geometrically distributed number of genes with unknown mean mu, and these events combine to produce deleted runs of length l, distributed approximately as a negati

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37

Chou, Chihong. "Fractional statistics." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/31030.

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38

Chiarella, Andrew. "Statistical reasoning and scientific inquiry : statistics in the physical science classroom." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33882.

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Teaching science using an inquiry approach is encouraged by several organisations responsible for defining teaching and learning guidelines in North America. However, using this approach can be difficult because of the complexity of inquiry. One source of difficulty is an inability to make sense of the data. Error variation, in particular, poses a significant barrier to the correct interpretation of data and therefore successful inquiry learning. A study was conducted to examine middle school students' ability to make sense of the data they collected in three related experiments. These data in

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39

Raj, Alvin Andrew. "Ambiguous statistics - how a statistical encoding in the periphery affects perception." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/79214.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 159-163).<br>Recent understanding in human vision suggests that the periphery compresses visual information to a set of summary statistics. Some visual information is robust to this lossy compression, but others, like spatial location and phase are not perfectly represented, leading to ambiguous interpretations. Using the statistical encoding, we can visualize the information available in the peri

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40

Schneider, William Ray. "The Relationship Between Statistics Self-Efficacy, Statistics Anxiety, and Performance in an Introductory Graduate Statistics Course." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3335.

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The purpose of this study was to determine the relationship between statistics self-efficacy, statistics anxiety, and performance in introductory graduate statistics courses. The study design compared two statistics self-efficacy measures developed by Finney and Schraw (2003), a statistics anxiety measure developed by Cruise and Wilkins (1980), and a course performance measure. To view self-efficacy from two perspectives, the Current Statistics Self-Efficacy (CSSE) assessed student confidence in their ability to complete specific statistics tasks in the present, whereas Self-Efficacy to Lear

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41

Wong, Sik-kwan Francis. "Outcome of a web-based statistic laboratory for teaching and learning of medical statistics." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B43251687.

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42

Friedrich, Oliver [Verfasser], and Ralf [Akademischer Betreuer] Bender. "Statistical properties of the cosmic density field beyond 2-point statistics : covariance matrices and density split statistics / Oliver Friedrich ; Betreuer: Ralf Bender." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2018. http://d-nb.info/1178323749/34.

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Friedrich, Oliver Verfasser], and Ralf [Akademischer Betreuer] [Bender. "Statistical properties of the cosmic density field beyond 2-point statistics : covariance matrices and density split statistics / Oliver Friedrich ; Betreuer: Ralf Bender." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2018. http://d-nb.info/1178323749/34.

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44

Lesser, Elizabeth Rochelle. "A New Right Tailed Test of the Ratio of Variances." UNF Digital Commons, 2016. http://digitalcommons.unf.edu/etd/719.

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It is important to be able to compare variances efficiently and accurately regardless of the parent populations. This study proposes a new right tailed test for the ratio of two variances using the Edgeworth’s expansion. To study the Type I error rate and Power performance, simulation was performed on the new test with various combinations of symmetric and skewed distributions. It is found to have more controlled Type I error rates than the existing tests. Additionally, it also has sufficient power. Therefore, the newly derived test provides a good robust alternative to the already existing me

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45

Thayne, Jeffrey L. "Making Statistics Matter: Using Self-data to Improve Statistics Learning." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/5214.

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Research has demonstrated that well into their undergraduate and even graduate education, learners often struggle to understand basic statistical concepts, fail to see their relevance in their personal and professional lives, and often treat them as little more than mere mathematics exercises. This study explored ways help learners in an undergraduate learning context to treat statistical inquiry as mattering in a practical research context, by inviting them to ask questions about and analyze large, real, messy datasets that they have collected about their own personal lives (i.e., self-data).

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46

Audibert, Jean-Yves. "PAC-Bayesian aggregation and multi-armed bandits." Habilitation à diriger des recherches, Université Paris-Est, 2010. http://tel.archives-ouvertes.fr/tel-00843972.

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This habilitation thesis presents several contributions to (1) the PAC-Bayesian analysis of statistical learning, (2) the three aggregation problems: given d functions, how to predict as well as (i) the best of these d functions (model selection type aggregation), (ii) the best convex combination of these d functions, (iii) the best linear combination of these d functions, (3) the multi-armed bandit problems.

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Karlsson, Maria. "Estimators of semiparametric truncated and censored regression models." Doctoral thesis, Umeå : Department of Statistics, UmeåUniversity, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-540.

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48

Lindblad, Niclas. "Subversion Statistics Tool." Thesis, Linköping University, Department of Computer and Information Science, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-15792.

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<p>På Linköpings universitet använder man sig sällan av versionshanteringssystem i kurser. Istället sparas till exempel programmeringslabbar på enskilda personers UNIX konton. Detta leder till problem både när man programmerar i grupp men också om någonting skulle gå snett. Labhandledaren har också mycket sämre vetskap om hur specifika gruppers arbeten framskrider och många grupper kan få hjälp för sent på grund av detta. Troligtvis kommer versionshanteringssystem användas mycket mer i framtiden.</p><p>Att läsa versionsloggar för att följa upp grupper är ett osmidigt och tidskrävande jobb och

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49

Karlslätt, David. "Improved Statistics Handling." Thesis, Linköping University, Department of Computer and Information Science, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-18238.

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<p><p>Ericsson is a global provider of telecommunications systems equipment and related services for mobile and fixed network operators. </p><p>3Gsim is a tool used by Ericsson in tests of the 3G RNC node.</p><p>In order to validate the tests, statistics are constantly gathered within 3Gsim and users can use telnet to access the statistics using some system specific 3Gsim commands.</p><p>The statistics can be retrieved but is unstructured for the human eye and needs parsing and arranging to be readable. </p><p>The statistics handler that is implemented during this thesis provides a possibility

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50

Ghoudi, Kilani. "Multivariate randomness statistics." Thesis, University of Ottawa (Canada), 1993. http://dx.doi.org/10.20381/ruor-17165.

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During the startup phase of a production process while statistics on the product quality are being collected it is useful to establish that the process is under control. Small samples ni qi=1 are taken periodically for q periods. We shall assume each measurement is multivariate. A process is under control or on-target if all the observations are deemed to be independent and identically distributed. Let Fi represent the empirical distribution function of the ith sample. Let F¯ represent the empirical distribution function of all observations. Following Lehmann (1951) we propose statistics o

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