Die studie ondersoek die inligtingswaarde van dividende as 'n moontlike verldaring van die waargenome aandeleprysreaksie op dividendaankondigings. Twee algemene hipoteses is getoets, naamlik dat 'n betekenisvolle verandering in 'n maatskappy se dividendbeleid inligting oor daardie maatskappy se toekomstige verdienste per aandeel bevat, en tweedens dat hierdie inligting in die reaksie van aandelepryse na die aankondiging van die verandering gereflekteer word. Die belangrikste bevindinge is soos volg: • Die inligting vervat in huidige dividendaankondigings kan nie deur beleggers gebruik word om die volgende jaar se verdienste per aandeel van 'n maatskappy te voorspel nie. Die aandeleprysreaksie op positiewe, negatiewe en neutrale nuus is statisties beduidend, maar vind hoofsaaklik in dieselfde rigting plaas. Beleggers sou dus nie die inligting vervat in dividendaankondigings kan gebruik om bogemiddelde opbrengskoerse te genereer nie. • Die inligtingswaarde van dividende is dus 'n onwaarskynlike verldaring van die invloed van 'n maatskappy se dividendbeleid op die waarde van sy gewone aandele. / This research investigates the information content of dividends as a possible explanation for the observed share price reaction to dividend announcements. Two hypotheses were tested, namely that a significant change in a company's dividend policy contains information on that company's future earnings per share, and secondly, that this information is reflected in the share price reaction after the announcement of the change. The most important findings are as follows: • Investors cannot use the information contained in current dividend announcements to predict a company's earnings per share for the next year. • Share price reactions to positive, negative and neutral news are statistically significant, but will be in the same direction. Hence investors cannot use this information to generate above-normal returns. The information content of dividends is therefore an unlikely explanation of the influence a company's dividend policy has on the value of its ordinary shares. / Business Management / MCom (Sakebestuur)

ITC/USA 2015 Conference Proceedings / The Fifty-First Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2015 / Bally's Hotel & Convention Center, Las Vegas, NV / Over the past several years DoD imposed constraints on test deliverables, requiring objective measures of test results, i.e., statistically defensible test and evaluation (SDT&E) methods and results. These constraints force the tester to employ statistical hypotheses, analyses and perhaps modeling to assess test results objectively, i.e., based on statistical metrics, probability of confidence and logical inference to supplement rather than rely solely on expertise, which is too subjective. Experts often disagree on interpretation. Numbers, although interpretable, are less variable than opinion. Logic, statistical inference and belief are the bases of testable, repeatable and refutable hypothesis and analyses. In this paper we apply linear regression modeling and analysis of variance (ANOVA) to time-space position information (TSPI) to determine if a telemetry (TM) antenna control unit (ACU) under test (AUT) tracks statistically, thus as efficiently, in C-band while receiving both C- and S-band signals. Together, regression and ANOVA compose a method known as analysis of covariance (ANCOVA). In this, the second of three papers, we use data from a range test, but make no reference to the systems under test, nor to causes of error. The intent is to present examples of tools and techniques useful for SDT&E methodologies in testing.

Made available in DSpace on 2016-04-27T17:13:02Z (GMT). No. of bitstreams: 1 Ieda Oliveira.pdf: 356909 bytes, checksum: 19ce48cbdf722c192977dc2913da6528 (MD5) Previous issue date: 2005-05-11 / Made available in DSpace on 2016-08-25T17:25:34Z (GMT). No. of bitstreams: 2 Ieda Oliveira.pdf.jpg: 1943 bytes, checksum: cc73c4c239a4c332d642ba1e7c7a9fb2 (MD5) Ieda Oliveira.pdf: 356909 bytes, checksum: 19ce48cbdf722c192977dc2913da6528 (MD5) Previous issue date: 2005-05-11 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / In this current work of the course of Professional Master of Mathematical Education paper, entitled "Investigations on hypotheses that students formulate about algebraic writings , we emphasize our concern with the teaching and learning of Algebra, which is always very present in our practice and that led us to look for researches developed about this theme and also historical studies on the development of Algebra, whose knowledge is very needed in the formation of a teacher of Mathematics. We present the results of an investigation performed with my fifth-grade students, in which we tried to identify the hypotheses that they formulate about the use of letters. We conclude, by trying to establish a relationship between the performance of this research and our professional development and also emphasizing the relevance of this research, in the scope of the teacher's work, related to the construction of a quotidian attitude in the search for the comprehension of their students' learning and development processes and to the autonomy in the interpretation of reality and the knowledge that constitutes their teaching objects. We also consider fundamental the knowledge by the teacher, of investigation methods used in the development of researches in Mathematical Education with emphasis on those which focus on the knowledge, the experience, the formation and the professional development as a tesacher / No presente trabalho de conclusão do Curso de Mestrado Profissional em Ensino de Matemática, intitulado A pesquisa e a prática docente: investigação sobre hipóteses que os alunos de 5ª série formulam a respeito de escritas algébricas , destacamos nossa preocupação com o ensino e aprendizagem da álgebra, sempre muito presente em nossa prática, que nos levou a procurar conhecer pesquisas desenvolvidas sobre o tema e também estudos históricos sobre o desenvolvimento da álgebra, conhecimentos que fazem muita falta na formação do professor de Matemática. Apresentamos o resultado de uma investigação feita com meus alunos de 5ª série, em que procuramos identificar as hipóteses que eles formulam sobre o uso de letras. Concluímos, procurando estabelecer uma relação entre a realização dessa pesquisa e o nosso desenvolvimento profissional e também destacando a relevância da pesquisa, no âmbito do trabalho do professor, relacionada à construção de uma atitude cotidiana de busca de compreensão dos processos de aprendizagem e de desenvolvimento de seus alunos e à autonomia na interpretação da realidade e dos conhecimentos que constituem seus objetos de ensino. Consideramos também fundamental o conhecimento, por parte do professor, de métodos de investigação utilizados no desenvolvimento de pesquisas em Educação Matemática, com destaque para aquelas que focalizam o conhecimento, a experiência, a formação e o desenvolvimento profissional desse profissional

This paper deals with sequential likelihood ratio tests based on grouped observations. It is demonstrated that the method of conjugated parameter pairs known from the non-grouped case can be extended to the grouped case obtaining Waldlike approximations for the OC- and ASN- function. For near hypotheses so-called F-optimal groupings are recommended. As example an SPRT based on grouped observations for the parameter of an exponentially distributed random variable is considered.

The purpose of the study is to determine the relationship between maternal employment and teenage character traits. Statistics show a significant increase in women entering the labour market and although demographics are changing rapidly, social attitudes and policies may lag behind, and the concept of mothers as principal caretakers and fathers as economic providers remains very much in place. The profound and sometimes contradictory convictions of individual members about working mothers and their children paralleled those of countless others and professional people where matched only by the equally profound lack of facts on which these convictions might be based. The objective of the study is to measure the perceived character traits of teenage children in terms of self confidence, locus of control, independence, time management and ambition. The questions were measured within two different scenarios: the first, within households where both parents are employed, and the second, within households where only the father is employed. The aim of the study is to determine if there is any correlation between maternal employment and the presence or lack of presence of the specified character traits. The empirical study was conducted using the quantitative research method with a non–probability sample. The data collection method used for the purpose of this study was in the form of questionnaires, based on the Likert scale. The content validity of the questionnaire was evaluated by a subject matter expert, while the face validity was determined by the Statistical Consultation Services of the North West University. Analysis of completed questionnaires involved descriptive statistics and practical significance. The target population, high school teachers within the North West and Gauteng Province, consisted of 70 participants. Based on the findings emanating from the research, there were no noticeable difference found between teenagers within households where both parents are employed and households where only the father is employed, although the results indicated a tendency for children within households where both parents are employed to be slightly more self confident, lean more towards an internal lotus of control, have higher ambition and are less dependent than those teenagers from households where only the father is employed. These findings, although not noticeable, agree with the literature. There were limitations that had an impact on the results of this study. The limited population resulted in a small sample. The sample indicated that 41 percent have five years or less experience. Participants indicated that they are not always aware of the household dynamics. Additional limitations include the strict ethical roadblocks when conducting research on children. It was recommended that a more comprehensive study should follow, which should include the participation of mothers and teenagers alike. This will give the researcher a distinct and clear result of what the influences could be within the household dynamics. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2012.

The purpose of the study is to determine the relationship between maternal employment and teenage character traits. Statistics show a significant increase in women entering the labour market and although demographics are changing rapidly, social attitudes and policies may lag behind, and the concept of mothers as principal caretakers and fathers as economic providers remains very much in place. The profound and sometimes contradictory convictions of individual members about working mothers and their children paralleled those of countless others and professional people where matched only by the equally profound lack of facts on which these convictions might be based. The objective of the study is to measure the perceived character traits of teenage children in terms of self confidence, locus of control, independence, time management and ambition. The questions were measured within two different scenarios: the first, within households where both parents are employed, and the second, within households where only the father is employed. The aim of the study is to determine if there is any correlation between maternal employment and the presence or lack of presence of the specified character traits. The empirical study was conducted using the quantitative research method with a non–probability sample. The data collection method used for the purpose of this study was in the form of questionnaires, based on the Likert scale. The content validity of the questionnaire was evaluated by a subject matter expert, while the face validity was determined by the Statistical Consultation Services of the North West University. Analysis of completed questionnaires involved descriptive statistics and practical significance. The target population, high school teachers within the North West and Gauteng Province, consisted of 70 participants. Based on the findings emanating from the research, there were no noticeable difference found between teenagers within households where both parents are employed and households where only the father is employed, although the results indicated a tendency for children within households where both parents are employed to be slightly more self confident, lean more towards an internal lotus of control, have higher ambition and are less dependent than those teenagers from households where only the father is employed. These findings, although not noticeable, agree with the literature. There were limitations that had an impact on the results of this study. The limited population resulted in a small sample. The sample indicated that 41 percent have five years or less experience. Participants indicated that they are not always aware of the household dynamics. Additional limitations include the strict ethical roadblocks when conducting research on children. It was recommended that a more comprehensive study should follow, which should include the participation of mothers and teenagers alike. This will give the researcher a distinct and clear result of what the influences could be within the household dynamics. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2012.

Diss. (sammanfattning) Stockholm : Handelshögskolan, 2008 Sammanfattning jämte 3 uppsatser

Thesis (Ph. D.)--Massachusetts Institute of Technology and Woods Hole Oceanographic Institution Joint Program in Oceanography/Applied Ocean Science and Engineering, 1997. / "September 1997." "Funding was provided by National Science Foundation Grant OCE-9201286, National Science Foundation Graduate Fellowship Program, and the JOI/USSAC Ocean Drilling Graduate Fellowship Program." Includes bibliographical references (p. 152-153).

Thesis (Master of Military Studies)-Marine Corps Command and Staff College, 2008. / Title from title page of PDF document (viewed on: Dec 29, 2009). Includes bibliographical references.

Fire Rescue Service is territorialized in each region, which means that Fire Rescue Service is present in each region of the Czech Republic as an individual accounting entity. Each accounting entity is obliged to prepare own budget estimate for next year which serves for covering costs related to interventions. Therefore it is beneficial to have an overview about the number of interventions expected in following year. The prediction of the expected interventions should be based utmost on real data from the the last period. Fire Rescue Service units' interventions in traffic accidents are covered from the state budget as well as other performances. The thesis is concerning the statistic survey related to Fire Rescue Service's interventions in traffic accidents. Specified goals of the thesis: G1) The survey of the development in time of the number of traffic accidents associated with South Bohemia Fire Rescue Service's interventions in traffic accidents within one month as the unit of time during the last 5 years. It is considered as the survey of the first of selected parameters concerning Fire Rescue Service's interventions in traffic accidents in the South Bohemia region. G2) The survey of the development in time of costs associated with South Bohemia Fire Rescue Service's interventions in traffic accidents within one month as the unit of time during the last 5 years. It is considered as the survey of the second of selected parameters related to Fire Rescue Service's interventions in traffic accidents in the South Bohemia region. G3) The comparison of the number of interventions and costs, the investigation of the apportionment of the number of interventions and costs in terms of a proper theoretical apportionment. It is considered as the survey concerning the dependence of selected parameters of Fire Rescue Service's interventions in traffic accidents in the South Bohemia region. With regard to a relativelly high number of primary data (entries from about 8 000 traffic accidents in the time period between 7/2010 and 6/2015 in the South Bohemia region, where was always present at least one unit of the South Bohemia Fire Rescue Service), mathematical statistic tools were needed to create a survey of selected parameters of the data file. Determining intervals for individual statistic features is to some extent carried out "by feeling". With regard to it, there was done the sensitivity analysis within which was investigated the influence of minor changes in the number of intervals on apportionment of percent occurrences of monitored statistical features (intervals were determined "by feeling" and based on recommendation from technical literature). For investigation of statistical features were used description statistics and also methods of statistical induction. The information used from technical literature and the interpretation of partial results and conclusions concerning individual sections of the thesis are provided in the section Discussion. The thesis demonstrated that the empirical apportionment of the number of traffic accidents and costs on South Bohemia Fire Rescue Service's interventions in traffic accidents can be considered as standard. Therefore it is correct to use theoretical findings associated with standard apportionment to work with those data. Also the thesis demonstrated that the number of traffic accidents and costs associated with South Bohemia Fire Rescue Service's interventions not only does not decrease but on the contrary increases. It was demonstrated that there is present very high positive correlation between numbers of the traffic accidents and the costs related to South Bohemia Fire Rescue Service's interventions in single months of the monitored time period. This brings us to a conclusion that the increase of costs related to interventions is caused mainly by the increase of the number of traffic accidents where the units of Fire Rescue Service intervene.