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Parametric Statistical Theory (Hardcover, Reprint 2011): Johann Pfanzagl Parametric Statistical Theory (Hardcover, Reprint 2011)
Johann Pfanzagl; Contributions by Ralf Hamboeker
R3,385 R2,660 Discovery Miles 26 600 Save R725 (21%) Ships in 10 - 15 working days
Estimation in Semiparametric Models - Some Recent Developments (Paperback, Softcover reprint of the original 1st ed. 1990):... Estimation in Semiparametric Models - Some Recent Developments (Paperback, Softcover reprint of the original 1st ed. 1990)
Johann Pfanzagl
R1,549 Discovery Miles 15 490 Ships in 10 - 15 working days

Assume one has to estimate the mean J x P( dx) (or the median of P, or any other functional t;;(P)) on the basis ofi.i.d. observations from P. Ifnothing is known about P, then the sample mean is certainly the best estimator one can think of. If P is known to be the member of a certain parametric family, say {Po: {) E e}, one can usually do better by estimating {) first, say by {)(n)(.~.), and using J XPo(n)(;r.) (dx) as an estimate for J xPo(dx). There is an "intermediate" range, where we know something about the unknown probability measure P, but less than parametric theory takes for granted. Practical problems have always led statisticians to invent estimators for such intermediate models, but it usually remained open whether these estimators are nearly optimal or not. There was one exception: The case of "adaptivity", where a "nonparametric" estimate exists which is asymptotically optimal for any parametric submodel. The standard (and for a long time only) example of such a fortunate situation was the estimation of the center of symmetry for a distribution of unknown shape.

Elementare Wahrscheinlichkeitsrechnung (German, Hardcover, 2nd 2. Uberarb. U. Erw. Aufl. Repr ed.): Johann Pfanzagl Elementare Wahrscheinlichkeitsrechnung (German, Hardcover, 2nd 2. Uberarb. U. Erw. Aufl. Repr ed.)
Johann Pfanzagl
R3,361 R2,636 Discovery Miles 26 360 Save R725 (22%) Ships in 10 - 15 working days
Compact Systems of Sets (Paperback, 1966 ed.): Johann Pfanzagl, Wilfried Pierlo Compact Systems of Sets (Paperback, 1966 ed.)
Johann Pfanzagl, Wilfried Pierlo
R1,157 Discovery Miles 11 570 Ships in 10 - 15 working days
Elementare Methoden unter besonderer Berucksichtigung der Anwendungen in den Wirtschafts- und Sozialwissenschaften (German,... Elementare Methoden unter besonderer Berucksichtigung der Anwendungen in den Wirtschafts- und Sozialwissenschaften (German, Hardcover, 6th 6. Verb. Aufl. ed.)
Johann Pfanzagl
R3,611 Discovery Miles 36 110 Ships in 12 - 17 working days
Elementare Methoden unter besonderer Berucksichtigung der Anwendungen in den Wirtschafts- und Sozialwissenschaften (German,... Elementare Methoden unter besonderer Berucksichtigung der Anwendungen in den Wirtschafts- und Sozialwissenschaften (German, Hardcover, 3rd 3., Neubearb. Aufl. ed.)
Johann Pfanzagl
R3,617 Discovery Miles 36 170 Ships in 12 - 17 working days
Elementare Methoden unter besonderer Berucksichtigung der Anwendungen in den Wirtschafts- und Sozialwissenschaften (German,... Elementare Methoden unter besonderer Berucksichtigung der Anwendungen in den Wirtschafts- und Sozialwissenschaften (German, Hardcover, Reprint 2019 ed.)
Johann Pfanzagl
R3,611 Discovery Miles 36 110 Ships in 12 - 17 working days
Hoehere Methoden unter besonderer Berucksichtigung der Anwendungen in Naturwissenschaften, Medizin und Technik (German,... Hoehere Methoden unter besonderer Berucksichtigung der Anwendungen in Naturwissenschaften, Medizin und Technik (German, Hardcover, 4., Verb. Aufl. Reprint 2019 ed.)
Johann Pfanzagl
R3,619 Discovery Miles 36 190 Ships in 12 - 17 working days
Elementare Methoden Unter Besonderer Berucksichtigung Der Anwendungen in Den Wirtschafts- Und Sozialwissenschaften (German,... Elementare Methoden Unter Besonderer Berucksichtigung Der Anwendungen in Den Wirtschafts- Und Sozialwissenschaften (German, Hardcover, 5th 5., Verb. Aufl ed.)
Johann Pfanzagl
R3,614 Discovery Miles 36 140 Ships in 12 - 17 working days
Elementare Methoden unter besonderer Berucksichtigung der Anwendungen in den Wirtschafts- und Sozialwissenschaften (German,... Elementare Methoden unter besonderer Berucksichtigung der Anwendungen in den Wirtschafts- und Sozialwissenschaften (German, Hardcover, 2nd 2., Neubearb. Aufl. ed.)
Johann Pfanzagl
R3,616 Discovery Miles 36 160 Ships in 12 - 17 working days
Hoehere Methoden unter besonderer Berucksichtigung der Anwendung in Naturwissenschaft, Medizin und Technik (German, Hardcover,... Hoehere Methoden unter besonderer Berucksichtigung der Anwendung in Naturwissenschaft, Medizin und Technik (German, Hardcover, Reprint 2019 ed.)
Johann Pfanzagl
R3,618 Discovery Miles 36 180 Ships in 12 - 17 working days
Hoehere Methoden unter besonderer Berucksichtigung der Anwendungen in Naturwissenschaften, Medizin und Technik (German,... Hoehere Methoden unter besonderer Berucksichtigung der Anwendungen in Naturwissenschaften, Medizin und Technik (German, Hardcover, 3rd 3., Verb. Aufl ed.)
Johann Pfanzagl
R3,621 Discovery Miles 36 210 Ships in 12 - 17 working days
Hoehere Methoden unter besonderer Berucksichtigung der Anwendung in Naturwissenschaft, Medizin und Technik (German, Hardcover,... Hoehere Methoden unter besonderer Berucksichtigung der Anwendung in Naturwissenschaft, Medizin und Technik (German, Hardcover, 2nd 2., Verb. Aufl. ed.)
Johann Pfanzagl
R3,621 Discovery Miles 36 210 Ships in 12 - 17 working days
Elementare Methoden unter besonderer Berucksichtigung der Anwendungen in den Wirtschafts- und Sozialwissenschaften (German,... Elementare Methoden unter besonderer Berucksichtigung der Anwendungen in den Wirtschafts- und Sozialwissenschaften (German, Hardcover, 4th 4., Verb. Aufl ed.)
Johann Pfanzagl
R3,615 Discovery Miles 36 150 Ships in 12 - 17 working days
Mathematical Statistics - Essays on History and Methodology (Hardcover, 1st ed. 2017): Johann Pfanzagl Mathematical Statistics - Essays on History and Methodology (Hardcover, 1st ed. 2017)
Johann Pfanzagl
R4,299 R4,080 Discovery Miles 40 800 Save R219 (5%) Ships in 9 - 15 working days

This book presents a detailed description of the development of statistical theory. In the mid twentieth century, the development of mathematical statistics underwent an enduring change, due to the advent of more refined mathematical tools. New concepts like sufficiency, superefficiency, adaptivity etc. motivated scholars to reflect upon the interpretation of mathematical concepts in terms of their real-world relevance. Questions concerning the optimality of estimators, for instance, had remained unanswered for decades, because a meaningful concept of optimality (based on the regularity of the estimators, the representation of their limit distribution and assertions about their concentration by means of Anderson's Theorem) was not yet available. The rapidly developing asymptotic theory provided approximate answers to questions for which non-asymptotic theory had found no satisfying solutions. In four engaging essays, this book presents a detailed description of how the use of mathematical methods stimulated the development of a statistical theory. Primarily focused on methodology, questionable proofs and neglected questions of priority, the book offers an intriguing resource for researchers in theoretical statistics, and can also serve as a textbook for advanced courses in statisticc.

Mathematical Statistics - Essays on History and Methodology (Paperback, Softcover reprint of the original 1st ed. 2017): Johann... Mathematical Statistics - Essays on History and Methodology (Paperback, Softcover reprint of the original 1st ed. 2017)
Johann Pfanzagl
R4,583 Discovery Miles 45 830 Ships in 10 - 15 working days

This book presents a detailed description of the development of statistical theory. In the mid twentieth century, the development of mathematical statistics underwent an enduring change, due to the advent of more refined mathematical tools. New concepts like sufficiency, superefficiency, adaptivity etc. motivated scholars to reflect upon the interpretation of mathematical concepts in terms of their real-world relevance. Questions concerning the optimality of estimators, for instance, had remained unanswered for decades, because a meaningful concept of optimality (based on the regularity of the estimators, the representation of their limit distribution and assertions about their concentration by means of Anderson's Theorem) was not yet available. The rapidly developing asymptotic theory provided approximate answers to questions for which non-asymptotic theory had found no satisfying solutions. In four engaging essays, this book presents a detailed description of how the use of mathematical methods stimulated the development of a statistical theory. Primarily focused on methodology, questionable proofs and neglected questions of priority, the book offers an intriguing resource for researchers in theoretical statistics, and can also serve as a textbook for advanced courses in statisticc.

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