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1. |
Record Nr. |
UNINA9910785884603321 |
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Autore |
Wilson J. Holton |
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Titolo |
Regression analysis : understanding and building business and economic models using Excel / / J. Holton Wilson, Barry P. Keating, and Mary Beal |
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Pubbl/distr/stampa |
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New York, NY : , : Business Expert Press, , 2012 |
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ISBN |
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1-283-89499-8 |
1-60649-435-X |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (192 p.) |
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Collana |
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The quantitative approaches to decision making collection |
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Disciplina |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Nota di contenuto |
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1. Background issues for regression analysis -- 2. Introduction to regression analysis -- 3. The ordinary least squares (OLS) regression model -- 4. Evaluation of ordinary least squares (OLS) regression models -- 5. Point and interval estimates from a regression model -- 6. Multiple linear regression -- 7. A market share multiple regression model -- 8. Qualitative events and seasonality in multiple regression models -- 9. Nonlinear regression models -- 10. Abercrombie & Fitch Co. regression case study -- 11. The formal ordinary least squares (OLS) regression model -- Appendix. Some statistical background -- Index. |
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Sommario/riassunto |
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This book covers essential elements of building and understanding regression models in a business/economic context in an intuitive manner. The technique of regression analysis is used so often in business and economics today that an understanding of its use is necessary for almost everyone engaged in the field. It is especially useful for those engaged in working with numbers - preparing forecasts, budgeting, estimating the effects of business decisions, and any of the forms of analytics that have recently become so useful. |
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2. |
Record Nr. |
UNINA9910298970803321 |
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Autore |
Osterhage Wolfgang W |
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Titolo |
IT Quality Management / / by Wolfgang W. Osterhage |
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Pubbl/distr/stampa |
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Berlin, Heidelberg : , : Springer Berlin Heidelberg : , : Imprint : Springer, , 2014 |
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ISBN |
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Edizione |
[1st ed. 2014.] |
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Descrizione fisica |
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1 online resource (139 p.) |
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Disciplina |
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003.3 |
004 |
004.24 |
004.6 |
005.74 |
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Soggetti |
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Computer architecture |
Management information systems |
Computer science |
Computer software—Reusability |
Computer organization |
Computer system failures |
Database management |
Computer System Implementation |
Management of Computing and Information Systems |
Performance and Reliability |
Computer Systems Organization and Communication Networks |
System Performance and Evaluation |
Database Management |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Objectives -- Project Organisation -- Quality Management in the Context of Acceptance -- Subproject Organisation Quality Management -- Acceptance Directive -- Methods of Data and Software Migration -- Special Cases -- Documentation -- Security Aspects -- Project Management -- Project Controlling -- References -- Subject Index. |
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Sommario/riassunto |
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In a comprehensive approach this book covers the end-to-end process from request management to change management, error management and migration management to acceptance testing and final data clean up. It is based upon nearly twenty years of experience in tests, acceptance and certification, when introducing medium to large IT systems including complex software for administrations and industry in many countries. There exist a variety of methodologies with different characteristics having emanated from various schools and consultancies to support such activities. However, it is obvious that because of the diversity in organisational levels in companies the rigor of application of such methodologies quite often suffers with regard to more pragmatic approaches. In view of economic considerations this may be unavoidable. For this reason no new or consolidated methodology shall be presented but an approach oriented on practical criteria coming closer to reality and offering methods, which can provide assistance on a case-by-case basis. |
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