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Filtering by: Rights Statement Copyright Not Evaluated Remove constraint Rights Statement: Copyright Not Evaluated Subject Estimation theory Remove constraint Subject: Estimation theory

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Estimation of the population total when the sample is taken from a list containing an unknown amount of duplication

Creator:

Tarng, Suey-huey

Resource Type:

Dissertation
Admissibility in linear models

Creator:

Azzam, Abdul-Mordy Hamed

Resource Type:

Dissertation
Large sample efficiencies of invariant quadratic unbiased estimators

Creator:

Poulsen, Neil Kenneth

Abstract:

This dissertation examines limiting efficiencies of quadratic unbiased estimators for the variance in the two variance component mixed model. The set of quadratic unbiased estimators considered includes the minimal complete class. A theorem is proved which shows that, in certain cases, a relatively simple expression converges to the same value...

Resource Type:

Dissertation
A new estimator of effective area surveyed in wildlife studies

Creator:

Wildman, Valerie Jean

Abstract:

A new estimator of effective area surveyed is proposed for use in estimating population sizes or densities. The estimator is based on the cumulative distribution function for the observed detection areas and can be used with the data arising from either a line transect or a variable circular plot survey....

Resource Type:

Dissertation
Estimation of totals for skewed populations in repeated agricultural surveys

Creator:

Viroonsri, Boonchai

Abstract:

The National Agricultural Statistical Service (NASS) conducts quarterly surveys for estimation of some primary commodities produced on farms and ranches. The commodities often have highly skewed distributions with a few farms producing very large amounts. NASS uses dual sampling frames comprised of the list frame for efficient stratification and the...

Resource Type:

Dissertation
Nonparametric density estimation by generalized expansion estimators-a cross-validation approach

Creator:

Rossi, Richard J., 1956-

Resource Type:

Dissertation
Robust estimation for the mean of skewed distributions

Creator:

Hussein, Osama Abdelaziz

Abstract:

Common estimators of the mean g(θ) = Jx dFθ(x) in skewed distribution models may be sensitive to contamination by a few large observations. It is then desirable to consider robust estimators g(θ) .The approach of Hampel (1968), who defines an estimator θ for the parameter vector θ to be optimal...

Resource Type:

Dissertation
Improving on the intra-block estimator via a nonlinear normal equation estimator

Creator:

El-Arishy, Samia Mosaad Aly

Resource Type:

Dissertation
Nonlinear unbiased estimators that dominate the intra-block estimator

Creator:

Saleh, Amina Ali Abd El-Fattah

Resource Type:

Dissertation
Post stratified estimation using a known auxiliary variable

Creator:

Bedier, Mostafa Abdellatif

Abstract:

Post stratification is considered desirable in sample surveys for two reasons - it reduces the mean squared error when averaged over all possible samples, and it reduces the conditional bias when conditioned on stratum sample sizes. The problem studied in this thesis is post stratified estimation of a finite population...

Resource Type:

Dissertation

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Academic Affiliation

Statistics13
Statistics8
Economics2
Forest Management1

Advisor

Seely, Justus F.4
Thomas, David R.3
Birkes, David S.2
Faulkenberry, G. David2
Ramsey, Fred L.2
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Current results range from 1969 to 2006

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Committee Member

Bergland, Olvar1
Calvin, Lyle D.1
Graham, Roger1
Mishra, Santosh1
Pierce, Donald A.1
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Creator

Azzam, Abdul Mordy Hamed1
Bedier, Mostafa Abdellatif1
Bin, Okmyung1
Ek, Alan R.1
El Arishy, Samia Mosaad Aly1
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Date

Date range begin – Date range end

Current results range from 1969 to 2005

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Decade

2000-20092
1990-19994
1980-19899
1960-19691

Degree Field

Statistics13
Economics2
Forest Management1

Degree Level

Doctoral16

Degree Name

Doctor of Philosophy (Ph.D.)16

Language

English [eng]16

Non-Academic Affiliation

Oregon State University. Graduate School16

Peer Reviewed

No15

Resource Type

Dissertation16

Rights Statement

Copyright Not Evaluated[remove]16

Subject

Estimation theory[remove]16
Nonparametric statistics2
Sampling (Statistics)2
Agricultural surveys -- Statistical methods1
Agriculture -- Statistical methods1
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