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Articles 61 - 76 of 76
Full-Text Articles in Applied Mathematics
Numerical Approximations To The Cumulative Chi-Square Distribution, The Cumulative T-Distribution And The Cumulative F-Distribution For Digital Computers, Grace Yuan-Chuen Wang
Numerical Approximations To The Cumulative Chi-Square Distribution, The Cumulative T-Distribution And The Cumulative F-Distribution For Digital Computers, Grace Yuan-Chuen Wang
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
There are good tables of the frequently used cumulative frequency distributions. These tables have some limitations with respect to the number of percentage points that are available. The main drawback in computer usage of these tables is that large amounts of storage and elaborate search and interpolation techniques are necessary for their use.
It is the purpose of this study to present associated numerical methods for digital computer which are satisfactorily accurate and which are reasonably economical in both time and machine memory capacity. To carry out this objective the following procedures were used:
1. A review of literature on …
An Exposition On Bayesian Inference, John Laffoon
An Exposition On Bayesian Inference, John Laffoon
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The Bayesian approach to probability and statistics is described, a brief history of Bayesianism is related, differences between Bayesian and Frequentist schools of statistics are defined, protential applications are investigated, and a literature survey is presented in the form of a machine-sort card file.
Bayesian thought is increasing in favor among statisticians because of its ability to attack problems that are unassailable from the Frequentist approach. It should become more popular among practitioners because of the flexibility it allows experimenters and the ease with which prior knowledge can be combined with experimental data.
Tests Of Independence In Contingency Tables, Su-Feng Wongbhan
Tests Of Independence In Contingency Tables, Su-Feng Wongbhan
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
This report is a survey of the literature for a combination of different tests for both two-way and multi-way tests of independence in contingency tables. The derivation of the commonly used chi-square statistic for the tests will be shown immediately below, then followed by the summary of the different tests which will be the contents of this report.
Reduction And Summarization Of Forage Production Data From Pasture And Range Lands, Julian Leigh Wilkinson Jr.
Reduction And Summarization Of Forage Production Data From Pasture And Range Lands, Julian Leigh Wilkinson Jr.
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
In an attempt to control and properly manage our vast pasture and range lands there have been many problems that the scientist has been confronted with. Among these has been the problem of reducing the great quantity of collected data from the ranges and pasture lands into a form suitable for scientific analysis. In the past this reduction process has been accomplished by slow, painstaking hand calculation methods, thus making it virtually impossible for the scientist to analyze and propose corrective measures at the time they are needed. However, with the advent of high speed computing equipment this need no …
Review Of Reliability Techniques, Eugene Richard Doherty
Review Of Reliability Techniques, Eugene Richard Doherty
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
In the development of any product to perform a specific function the first concern of the engineer is to design for satisfactory operation. Engineers originally approached the reliability problem by using excessive safety factors to be assured the structure or material would withstand the calculated loads and stresses. The engineer also learned from operating or testing the equipment until failures occurred and then redesigning as mistakes became apparent. These methods were time consuming and often resulted in bulky over designed products. These approaches became impractical with the advent of new technological advancements. The accelerated industrial development of aircraft, missiles, and …
A Logistic System Simulation Model Encompassing Poisson Processes And Normal Or Weibull Life, Willard A. Hansen
A Logistic System Simulation Model Encompassing Poisson Processes And Normal Or Weibull Life, Willard A. Hansen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This thesis describes a computer simulation model for determining effective spares stock levels for recoverable items at Air Force bases and depots. The simulation model is based on the following fundamental inventory theory; whenever a demand arises, it is satisfied from stock on hand, and the quantity equal to that demand is recorded immediately; when a demand exceeds stock on hand, the excess demand is backordered immediately and when item life expires procurement action is initiated at depot level. The resulting product of the model cam be used as a guide for the optimum distribution of available spares or as …
Bayesian Inference, Sing-Chou Wu
Bayesian Inference, Sing-Chou Wu
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
Bayes' original paper "Essay Towards Solving a Problem in the Doctrine of Change" was published in Philosophical Transactions of the Royal Society, 1763. Over 200 years, Bayes' Concepts have survived numerous critical onslaughts. Even though Bayesian Inference is still regarded as being somewhat unorthodox, it is becoming more generally accepted each year by statisticians and other scientists.
It is the purpose of this paper to provide a bird's-eye view of Bayesian Inference with emphasis on the comparison of Bayesian approaches and conventional approaches. This paper is written for those who have had about one year's background in mathematical statistics.
Some …
Fredholm Solution Of Linear Integral Equations, Dewey F. Furness
Fredholm Solution Of Linear Integral Equations, Dewey F. Furness
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
An integral equation of the form
ζ(x) - λ∫ K(x, s) ζ(s) ds = f(x) a ≤ x ≤ b
is called a Fredholm equation. By the method of successive approximations a solution can be obtained if the parameter λ is sufficiently small. If the kernel, K (x, s), is degenerate then a solution can be obtained by reducing it to a system of linear algebraic equations. In the general case the kernel is represented as an infinite Fourier Series. With this representation the solution is obtained by combining the two methods mentioned. The solution is the solution of two …
Formulation Of Error Structures Under Non-Orthogonal Situations, Justus Frandsen Seely
Formulation Of Error Structures Under Non-Orthogonal Situations, Justus Frandsen Seely
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
To gain an appreciation or understanding for the title of this study we must first understand what the phrases "non-orthogonal" and "error structure" mean. With an understanding of these terms the title of this study will become clear.
To obtain an understanding of the term non-orthogonal, consider an experiment where differing treatments are applied to groups of experimental units in order to observe the differential treatment responses. If an equal number of experimental units are in each group, then we say we have an orthogonal situation. This means that when equal numbers exist among the experimental units, that the variability …
Boolean Space, Tzeng-Hsiang Sun
Boolean Space, Tzeng-Hsiang Sun
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
M. H. A. Stone showed in 1937 and subsequently that many interesting and important results of general topology involve latices and Boolean rings. This type of result forms the substance of this thesis.
Theorem 4, page 11, states that for any r ≠ 0 in a Boolean ring, there exists a homomorphism h into I2 , (the field of integers modulo 2), such that h(r) = 1.
Theorem 3, page 6, states that any subring of a characteristic ring of a Boolean space X is the whole ring if it has the two points property (that is, given x, …
Barypact Topological Spaces, Bradley Y. Maughan
Barypact Topological Spaces, Bradley Y. Maughan
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Recently, Kimber [3] has discovered a general class of topological spaces, the members of which are termed barypact spaces, that includes the compact topological spaces. This class is distinct from the set of all compact topological spaces, but its members possess many of the useful properties associates with compactness. As a consequence, several standard compactness theorems become special cases of corresponding theorems in a more general setting and the techniques of proof applied to these extensions provide new, and sometimes remarkably simple, proofs of the very theorems they generalize. The purpose of this paper is to extend to this …
A Development Of The Number System, Janet R. Olsen
A Development Of The Number System, Janet R. Olsen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This paper is based on Landau's book "Foundations of Analysis" which constitutes a development of the number system founded on the Peano axioms for natural numbers.
Investigation Of The Properties Of The Iterations Of A Homeomorphism On A Metric Space, Murray B. Peterson, Jr.
Investigation Of The Properties Of The Iterations Of A Homeomorphism On A Metric Space, Murray B. Peterson, Jr.
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Considerable study has been made concerning the properties of the iterations of a homeomorphism on a metric space. Much of this material is scattered throughout the literature and understood solely by a specialist. The main object of this paper is to put into readable form proofs of theorems found in G.T. Whyburn's "Analytic Topology" pertaining to this topic in topology. Properties of the decomposition space of point-orbits induced by the iterations of a homeomorphism will compose a major part of the study. Some theorems will be established through series of lemmas required to fill in much of the detail lacking …
Topological Groups, Nicolas Anthony Thireos
Topological Groups, Nicolas Anthony Thireos
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A topological group is an abstract group which is also a topological space and in which the group operation are continuous. In group theory the algebraic binary operation of passage to a limit is studied in a similar manner. The two fundamental mathematical concepts of binary operation and passage to a limit are united and interrelated in the concept of topological group.
The concept of topological groups arose from the study of continuous transformations. However, topological groups can be studied quite independently from continuous transformations and the latter can be presented as applications of topological groups. The first person to …
A Generalization Of The Rayleigh Distribution, Ruth H. Lemon
A Generalization Of The Rayleigh Distribution, Ruth H. Lemon
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This papers is divided into numbered sections. The equations are numbered anew in each section, and equation numbers are always enclosed in parentheses. Merely the equation number is given when referring to an equation in the same section as the references; otherwise the section number is prefixed. Thus equation (4) refers to the fourth equation of the same section as the reference, and equation (2.2) refers to the second equation of the second section.
Studies On The Sampling Methodology Of Peas For Yield And Quality, Pratapsinha Chintamani Pendse
Studies On The Sampling Methodology Of Peas For Yield And Quality, Pratapsinha Chintamani Pendse
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Pea1 growers have much at stake in getting high yields of peas of prime quality. The income accruing from a pea crop grown for processors is determined by the yield as well as quality. Therefore the farmers' efforts are directed toward growing such a crop.
Research workers are interested in knowing the yield of peas with known tenderometer values which will indicate the quality of peas. Present methods of field harvesting are costly and time consuming which tend to limit the number of varieties that can be satisfactorily evaluated for trial.
A comparison of sampling techniques with present harvesting …