Newsgroup sci.stat.math 12092

Directory

Rich,
Sorry for the delay in responding.  Long work-week.  
R.U.wrote:
> -- Okay, if the start of service is supposed to be scheduled,
>then, WHAT GOES WRONG?  Why are there any waits?  Is someone
>taking longer than expected to deal with the previous patient?  Or
>are they just killing too much time by the water cooler?
>
>It seems to me that some insights from ordinary queuing theory
>still apply.  If your services are supplied at CLOSE to the
>maximum possible, then, potentially, you can expect some VERY 
>LONG lines.  All it takes is a little bit of disruption, a little
>bit of slowdown, and the delay for one customer becomes a
>delay for EVERY customer after -- if you do not have some way of
>speeding up or discarding the longest jobs, or adding servers
>when the lines start to build up.
>
>I still think that characterizing the time required for various
>"tasks"  is apt to be helpful.  A task might "hardly ever" be
>a problem, but a few "hardly-evers"  might add up to something
>noticeable.
>
>Rich Ulrich, wpilib+@pitt.edu
I have established the service times to a reasonable degree of 
accuracy (all things considered).  I just don't have a large 
enough sample size to get reliable correlations.  The factor 
here that reason suggests would be most significant is the large 
average daily late-arrival to clinic of 2/3 of the physicians 
involved.  That statistic could probably be treated as a Poisson 
process!  The only thing is, I really do not want to model the 
system that way -- I would rather try to convince these guys to 
try getting to work on time or send a substitute!  
There is one other factor that I think is a contributor but I 
just do not have enough data points to show it and it is not 
nearly as intuitively acceptable as the physician-lateness 
parameter.  
Thanks,

The on-going dispute between Bayesians and Frequentists will most likely
never be settled because they conceptualize statistics differently. I have
seen the same arguments rehashed over and over for many years. The best
one can do is understand the differences and see which approach makes most
sense for the particular problem at hand. 
I would commend an excellent article on this topic by Brad Efron: "Why
Isn't Everyone a Bayesian?" The title does should not be taken to mean
that he thinks everyone *should* be a Bayesian.

I have the following books for sale :
Please note the books condition:
Brand New = (!)           Good    = (***)
Excellent = (****)        Average = (**)             Poor = (*)
--------------------------------------------------------------------------
- J. G. Kemeny, J. L. Snell, G. L. Thompson, Introduction to Fininte
  Mathematics, Second Edition, Prentice-Hall, 1956, $19, (***).
- W. H. Press, B. P. Flannery, S. A. Teukolsky, and W. T. Vetterling,
  Numerical Recipes in Pascal, Cambridge University Press, 1989, $39
  (!).
- F. G. Shinskey, Process Control Systems: Application, Design, and 
  Tuning, 3rd ed., McGraw-Hill, 1988, $29 (****).
- W. Kaplan, Introduction to Analytic Functions, Addison-Wesley, 1966,
  $24, (***).
- M. C. Gemignani, Elementary Topology, Second Edition, Addison Wesley,
  1967, $22, (****).
- R. C. Diprima, W. E. Boyce, Elementary Differential Equations, Third
  Edition, Wiley, 1977, $22, (***).
- P. R. Halmos, Measure Theory, Nostrand, 1950, $35, (***).
- C. L. Silver, From Symbolic Logic...to Mathematical Logic, WCB, 1994,
  $34, (!).
- J. A. Peterson, J. Hashisaki, Theory of Arithmetic, Second Edition,
  Wiley, 1963, $22, (***).
- B. V. Limaye, Functional Analysis, Halsted Press, 1981, $29, (***).
- R. E. Williamson, R. H. Crowell, H. F. Trotter, Calculus of Vector
  Functions, Prentice-Hall, 1968, $27, (***).
- G. Strang, Linear Algebra and Its Applications, Academic Press, 1976,
  $23, (***).
- J. Breuer, Introduction to the Theory of Sets, Prentice Hall, 1958,
  $18 (***).
- R. S. Burington and C. C. Torrance, Higher Mathematics with Applications
  to Science and Engineering, McGraw-Hill, 1939, $19 (***).
- E. Gaughan, Introduction to Analysis, Brooks/Cole Pub. Co.,
  $22 (****).
- T. W. Gamelin, Uniform Algebra, Prentice Hall, 1969, $24 (***).
- J. W. Keesee, Elementary Abstract Algebra, D.C. Heath and Co.,
  1965, $19 (****).
- K. Knopp, Elements of The Theory of Functions, Dover, 1952, $15 
  (***, soft cover).
- K. Knopp, Infinite Sequences and Series, Dover, 1956, $15, (***, soft
  cover).
- K. Knopp, Theory And Application Of Infinite Series, Hafner Pub. Co.,
  2nd ed., 1923, $22 (***).
- R. C. Jeffrey, Formal Logic: Its Scope and Limits, McGraw Hill, 1967,
  $25 (****).
- E. R. Stabler, An Introduction to Mathematical Thought, Addison Wesley,
  1953, $19 (****).
- P. W. Zehna and R. L. Johnson, Elements of Set Theory, Allyn and Bacon,
  1962, $25 (****).
- W. H. Richardson, Finite Mathematics, Harper & Row Publishers, 1968, $19 
  (****).
- M. R. Kinsolving, Set Theory and The Number Systems, International
  Textbook Company, 1967, $19 (****).
- M. D. Larsen, Fundamental Concepts of Modern Mathematics, Addison Wesley,
  $19 (****).
- A. H. Lightstone, Symbolic Logic and the Real Number System: An Introduction
  to the Foundations of Number Systems, Harper & Row Publishers, 1965, $19
  (****).
- E. J. Cogan, Foundations of Analysis, Prentice Hall, 1962, $19 (****).
- V. G. Sprindzuk, Mahler's Problem in Metric Number Theory, American
  Mathematical Society, 1969, $23 (***).
- D. N. Clark, G. Pecelli, and R. Sacksteder, Contributions to Analysis and
  Geometry, Johns Hopkins University Press, 1981, $24 (****).
- G. A. Freiman, Foundations of a Structural Theory of Set Addition, 
  American Mathematical Society, 1973, $22 (****).
- R. T. Seeley, Calculus of Several Variables, Scott Foresman & Co., 1970,
  $19 (****).
- D. Saracino, Abstract Algebra: A First Course, Addison Wesley, 1980,
  $19 (***).
- J. T. Moore, Elements of Abstract Algebra, Allendoerfer Advanced 
  Series, The Macmillan Company, 1962, $22 (****).
- B. L. Van Der Waerden, Modern Algebra, Vol. I, Frederick Ungar
  Pub. Co., 1940, $25 (***).
- A. Clark, Elements of Abstract Algebra, Wadsworth Publishing Co., 1971,
  $22 (***).
- C. B. Hanneken, Introduction to Abstract Algebra, Dickenson Publishing
  Co., 1968, $22 (****).
- W. E. Barnes, Introduction to Abstract Algebra, D.C. Heath & Co., 1963,
  $22 (***).
- C. W. Curtis, Linear Algebra: An Introduction Approach, 2nd ed., Allyn
  and Bacon, Inc., 1968, $22 (***).
- J. Gilbert and L. Gilbert, Elements of Modern Algebra, 3rd ed., PWS-Kent
  Publishing Co., 1992, $22 (!).
- M. R. Spiegel, Applied Differential Equations, 2nd ed., Prentice Hall,
  1967, $17 (***).
- M. L. James, G. M. Smith, and J. C. Wolford, Applied Numerical Methods
  For Digital Computation with Fortran and CSMP, Harper & Row Pub., 1977,
  $22 (***).
- G. A. Bekey and W. J. Karplus, Hybrid Computation, John Wiley & Sons,
  1968, $22 (****).
- F. R. Ruckdeschel, BASIC Scientific Subroutines Vol. II, McGraw Hill,
  1981, $22 (****).
- A. L. Edwards, Statistical Analysis for Students in Psychology and
  Education, Rinehart & So., 1956, $10 (***).
- P. R. Rider, An Introduction to Modern Statistical Methods, John Wiley &
  Sons, 1939, $10 (***).
- M. Rosenblatt, Random Processes, Oxford University Press, 1962, $19 (***).
- Z. W. Birnbaum, Introduction to Probability and Mathematical Statistics,
  Harper & Brothers Pub., 1962, $19 (***).
- R. B. Reisel, Elementary Theory of Metric Spaces, Springer-Verlag, 1982,
  $15 (!), Soft Cover.
- D. Moller, Ed., Advanced Simulation in Biomedicine, Springer-Verlag, 
  1990, $17 (!), Soft Cover.
- D. V. Chudnovsky, G. V. Chudnovsky, H. Cohn, M. B. Nathanson, Eds., 
  Number Theory, Springer-Verlag, 1991, $18 (!), Soft Cover.
- K. H. Borgwardt, The Simplex Method: A Probablistic Analysis, Springer-
  Verlag, 1987, $18 (!), Soft Cover.
- J. R. Dias, Molecular Orbital Calculations Using Chemical Graph Theory,
  Springer-Verlag, 1993, $16 (!), Soft Cover.
- L. S. Charlap, Bieberbach Groups and Flat Manifolds, Springer-Verlag,
  1986, $17 (!), Soft Cover.
- R. L. Gue and M. E. Thomas, Mathematical Methods in Operations Research,
  The macmillan Co., 1968, $25 (****).
- F. Hausdorff, Set Theory, 2nd ed., Chelsea Pub. Co., 1962, $29 (****).
- S. Bell, J. R. Blum, J. V. Lewis, and J. Rosenblatt, Modern University
  Calculus with Coordinate Geometry, Holden Day, 1966, $23 (****).
- P. Buser, Geometry and Spectra of Compact Riemann Surfaces, Birkhauser
  Boston, 1992, $25 (!).
- J. L. Schiff, Normal Families, Springer Verlag, 1993, $19 (!, soft cover).
- C. E. Froberg, Introduction to Numerical Analysis, Addison Wesley, 1965,
  $22 (***).
- H. Rutishauser, Lectures on Numerical Mathematics, Birkhauswer, 1990,
  $35 (!).
- G. F. Simmons, Differential Equations with Applications and Historical
  Notes, McGraw-Hill, 1972, $25 (***).
- P. G. Hoel, Elementary Statistics, Second Edition, Wiley, 1966, 
  $25 (***).
- S. Ross, A First Course in Probability, Second Edition, MacMillan, 1984
  $28 (!).
- J. Gilbert, L. Gilbert, Elements of Modern Algebra, Third Edition, 1992
  $27 (****).
- P. C. Shields, Elementary Linear Algebra, Second Edition, Worth, 1968
  $18 (***).
- I. N. Vekua, Generalized Analytic Functions, Addison-Wesley Pub. Co.,
  1962, $25 (***).
- E. D. Rainville, P. E. Bedient, A Short Course in Differential
  Equations, Sixth Edition, Macmillan, 1981, $25 (****).
- H. L. Pazer, L. A. Swanson, Modern Methods for Statistcial Analysis,
  Intext Educational Publishers, 1972, $22 (****).
- P. E. Pfeiffer, Concepts of Probability Theory, McGraw Hill, 1965,
  $19 (***).
- J. S. Bendat and A. G. Piersol, Measurement And Analysis of Random
  Data, John Wiley & Sons, 1966, $19 (**).
- R. E. Walpole and R. H. Myers, Probability and Statistics for Engineers
  and Scientists, 2nd ed., Macmillan, 1978, $19 (**).

Dear all,
 I'm looking for some software that will perform Jacknife (and/or
bootstrap) analysis on some time-series data. Are there any such
programs available on the net, or included as part of a larger software
package (such as SAS)?
 Any guidance would be much appreciated. Please respond via email.
Regards,
Barry.
-- 
Barry W. Brook
Key Centre for Biodiversity and Bioresources
School of Biological Sciences
Macquarie University, NSW, 2109
E-mail: bbrook@rna.bio.mq.edu.au
Phone: 61 2 9850 9266
Fax:   61 2 9850 8245