Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/11218
Title: Análise de experimentos fatoriais de dois fatores com tratamentos adicionais
Other Titles: Analysis of factorial experiments with two levels and additional treatments
Authors: Morais, Augusto Ramalho de
Nogueira, Francisco Dias
Vivanco, Mário Javier Ferrua
Muniz, Joel Augusto
Keywords: Pesquisa Agropecuaria
Estatística - Processamento de dados
Análise estatística
Agricultural Research
Statistics - Data processing
Statistical analysis
Issue Date: 2-Jun-2016
Publisher: Universidade Federal de Lavras
Citation: YASSIN, N. Análise de experimentos fatoriais de dois fatores com tratamentos adicionais. 2001. 161 p. Dissertação (Mestrado em Estatística e Experimentação Agropecuária) - Universidade Federal de Lavras, Lavras, 2001.
Abstract: Experiments using factorial arrangement of treatments are rather common and useful in agricultural research. The main advantage is the possibility of testing many hypotheses, allowing broader conclusions over different factors, studied simultaneously. Factorial arrangements are used to compare levels of each factor (main effects), and also to verify if the differences among levels of a given factor are dependent on the levels of the other factors (interacions). In the analysis of data from factorial experiments, difficulty is increased when additional treatments are included. Inclusion of one or more additional treatments is a quite common practice, since such treatments are usually taken as reference or standard for evaluation and comparasion of the remaimng treatments, or aiming complementary information. This increase of difficulty is however low, compared to the advantages. As in literature there are few references about the statistical analysis of factorial experiments with additonal treatments, and given straightforward use in experimentation, the objective of this work was the presentation of approach for the use of factorial experiments with additonal treatments trough the analysis of some examples using the SAS® software, with the corresponding theoretical development, obtaining the system of normal equations, estimators of the parameters and variance of contrasts among two treatment means. It is suggested that additional treatments should be used with caution. The analysis of variance of such kind of experiment was presented using matrix notation.
Description: Dissertação/tese está disponível online com base na Resolução CEPE nº 090, de 24 de março de 2015, que dispõe sobre a disponibilização da coleção retrospectiva de teses e dissertações online no Repositório Institucional da UFLA, sem autorização prévia dos autores. Parágrafo Único. Caberá ao autor ou orientador a solicitação de restrição quanto à divulgação de teses e dissertações com pedidos de patente ou qualquer embargo similar. Art. 5º A obra depositada no RIUFLA que tenha direitos autorais externos à Universidade Federal de Lavras poderá ser removida mediante solicitação por escrito, exclusivamente do autor, encaminhada à Comissão Técnica da Biblioteca Universitária./ Arquivo gerado por meio da digitalização de material impresso. Alguns caracteres podem ter sido reconhecidos erroneamente.
URI: http://repositorio.ufla.br/jspui/handle/1/11218
Appears in Collections:Estatística e Experimentação Agropecuária - Mestrado (Dissertações)



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.