Muestreo Estadistico A Traves De Ejemplos Aplicaciones Con Excel Spss Sas Y Stata PDF Download

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Tcnicas De Muestreo Con Ibm Spss, Sas Y Stata

Tcnicas De Muestreo Con Ibm Spss, Sas Y Stata
Author: Libros Científicos
Publisher: CreateSpace
Total Pages: 182
Release: 2015-11-16
Genre:
ISBN: 9781519266422

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Los métodos de muestreo constituyen el conjunto de técnicas estadísticas que estudian la forma de seleccionar una muestra lo suficientemente representativa de una población cuya información permita inferir las propiedades o características de toda la población cometiendo un error medible y acotable. A partir de la muestra, seleccionada mediante un determinado método de muestreo, se estiman las características poblacionales (media, total, proporción, etc.) con un error cuantificable y controlable. Las estimaciones se realizan a través de funciones matemáticas de la muestra denominadas estimadores, que se convierten en variables aleatorias al considerar la variabilidad de las muestras. Los errores se cuantifican a través de varianzas, desviaciones típicas o errores cuadráticos medios de los estimadores, que miden la precisión de estos. La metodología que permite inferir resultados, predicciones y generalizaciones sobre la población estadística, basándose en la información contenida en las muestras representativas previamente elegidas por métodos de muestreo formales, se denomina inferencia estadística.Es muy importante tener en cuenta que para medir el grado de representatividad de la muestra es necesario utilizar muestreo probabilístico. Diremos que el muestreo es probabilístico cuando pueda establecerse la probabilidad de obtener cada una de las muestras que sea posible seleccionar, esto es, cuando la selección de muestras constituya un fenómeno aleatorio probabilizable. Dicha selección se verificará en condiciones de azar, siendo susceptible de medida la incertidumbre derivada de la misma. Esto permitirá medir los errores cometidos en el proceso de muestreo (a través de la varianza u otras medidas estadísticas).En este libro se presentan las técnicas de muestreo más importantes utilizadas en el trabajo estadístico. Se comienza tratando el muestreo aleatorios simple, para, a continuación, introducir el muestreo sistemático. Posteriormente se profundiza en el muestreo estratificado y en el muestro por conglomerados monoetápico, bietápico y polietápico. Finalmente, se ponen de manifiesto las aplicaciones del muestreo en la evaluación de impacto de políticas públicas. Todos los métodos de muestreo se ilustran con aplicaciones totalmente resueltas con el software más actuala, como IBM SPSS STATISTICS, SAS y STATA.


EBOOK: Sustaining Change in Universities

EBOOK: Sustaining Change in Universities
Author: Burton Clark
Publisher: McGraw-Hill Education (UK)
Total Pages: 224
Release: 2004-09-16
Genre: Education
ISBN: 0335224547

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·What can be done to ensure universities are well positioned to meet the challenges of the fast moving world of the 21st century? This is the central question addressed by Burton R. Clark in this significant new volume which greatly extends the case studies and concepts presented in his 1998 book, Creating Entrepreneurial Universities. The new volume draws on case studies of fourteen proactive institutions in the UK, Europe, Australia, Latin America, Africa, and the United States that extend analysis into the early years of the twenty-first century. The cumulative international coverage underpins a more fully developed conceptual framework offering insight into ways of initiating and sustaining change in universities. This new conceptual framework shifts attention from transformation to sustainability rooted in a constructed steady state of change and a collegial approach to entrepreneurialism. It contains key elements necessary for universities to adapt successfully to the modern world. Lessons for reform can be drawn directly from both the individual case studies and the general framework. Overall the book offers a new form of university organization that is more self-reliant and manages to combine change with continuity, traditional academic values with new managerial values. Essential reading for university administrators, faculty members, students and researchers analysing higher education, and educational policymakers worldwide, this book advocates a highly proactive approach to university change and specifies a new basis for university self- reliance. Burton R. Clark is Allan M. Cartter Professor Emeritus of Higher Education and Sociology at the University of California, Los Angeles. During his career, he has taught at five leading US universities: Stanford, Harvard, Berkeley, Yale and UCLA. He has published widely on the nature of university organization and the realistic possibilties of reform, linking research for understanding with research for use.


Livestock & Seed Division

Livestock & Seed Division
Author: United States. Agricultural Marketing Service
Publisher:
Total Pages: 20
Release: 1993
Genre:
ISBN:

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Entrepreneurship in BRICS

Entrepreneurship in BRICS
Author: Renata Lèbre La Rovere
Publisher: Springer
Total Pages: 0
Release: 2015-01-14
Genre: Business & Economics
ISBN: 9783319114118

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This book presents selected articles that discuss important issues related to entrepreneurship in Brazil, Russia, India and China as well as contributions from authors whose countries have a tradition on entrepreneurship support, such as Italy and the UK. The articles were presented and discussed in a conference on Entrepreneurship in Brazil in November 2013 organized by the Institute of Economics of the Federal University of Rio de Janeiro and IBMEC Business School. This book covers four essential themes: financing entrepreneurs, innovation environments, social entrepreneurship and e-entrepreneurship.


Poultry for Profit and Pleasure

Poultry for Profit and Pleasure
Author: Robyn G. Alders
Publisher: Food & Agriculture Org.
Total Pages: 56
Release: 2004
Genre: Technology & Engineering
ISBN: 9789251050750

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This publication is part of a series which seeks to raise awareness amongst policymakers and agricultural support services in low and middle income countries about sustainable income generation opportunities for small-scale farmers and local communities. It contains guidance on the keeping of poultry, and topics discussed include: the history of domestic poultry production, its contribution to sustainable rural livelihoods, key components of rural poultry production, diversification and intensification issues, utilisation of poultry products. It includes examples of case studies of poultry production schemes in Bangladesh, South Africa, Guatemala, Cambodia and the Philippines.