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Now showing items 11-20 of 24

#### On the Determination of Critical Values for Bartlett's Test

(University of Texas at Arlington, 1979-06)

The exact critical values for Bartlett's test for homogeneity of variances based on equal sample sizes from several normal populations are
tabulated. It is also shown how these values may be used to obtain highly accurate ...

#### Efficiency in Estimation of Mean Time to Failure in a Two-Parameter Exponential Failure Model

(University of Texas at Arlington, 1977-05)

When comparing two point estimators of some parametric function,
Pitman-closeness efficiency gives the "odds" in favor of one of
the estimators being closer to the true value than is the other
in a given situation. ...

#### Efficiency Contours for Estimators of Reliability in a 2-Parameter Exponential Failure Model

(University of Texas at Arlington, 1977-05)

When there are available several point estimators of some parametric function, it would seem desirable to make a comparison among the estimators based on some measure of closeness to the true value. Along these lines, the ...

#### The Convolution of Generialized-F Distributions

(University of Texas at Arlington, 1981-01)

The generalized-F variate is the ratio of two independent gamma
variates, and its distribution includes as special cases such
distributions as the inverted beta, Lomax, and Snedecor's-F.
Based on convolution, the ...

#### Interval Estimation of Reliability Characteristics of a k-identical Unit Standby Redundant System

(University of Texas at Arlington, 1977-02)

Standby redundancy is a method for increasing the reliability of a system through the use of additional "backup" units. Assuming perfect failure-sensing and switch-over, we consider such a system when the units are identical, ...

#### Estimation of the Guarantee Time in a Two-Parameter Exponential Failure Model

(University of Texas at Arlington, 1977-01)

There are available several classical point estimators of the guarantee time (location parameter) in a two-parameter exponential failure model. For the purpose of making a pairwise comparison of the estimators, a two-fold ...

#### On the Comparison of Estimators in a Rectangular Distribution

(University of Texas at Arlington, 1979-01)

Given two estimators ^1 and ^2 of an unknown parameter ^, Pitman (1937) has suggested calling ^1 a "closer" estimator of ^ than is ^2 if [see pdf for notations] for all values of ^. Using this "closeness" criterion, Johnson ...

#### A Monte Carlo Power Study of k-Sample Tests for Exponentiality

(University of Texas at Arlington, 1979-12)

Suppose one has a collection of k independent samples where the ith sample size is [see pdf for notation]. Let [see pdf for notation] denote the
ordered observations in the ith sample. A number of test procedures are ...

#### On the Relative Behavior Of Estimators of Reliability/Survivability

(University of Texas at Arlington, 1978-05)

Based on a decomposition of mean absolute error, a twofold technique is introduced whereby a pairwise comparison of point estimators of reliability/survivability can be made. Given two such estimators, the method examines ...

#### Truncated Circular Normal Distribution with Applications in Ballistics and Meteorology

(University of Texas at Arlington, 1973-12)

The use of the circular normal distribution (CND) to describe the behavior of random phenomena of a geophysical nature has been discussed by Crutcher [7, p. 9]. Based on the Mauchly [17] - Hsu [12] test, the harmonic dial ...