Welcome to the U.S. Census Monitoring Board Web Site

Welcome to the U.S. Census Monitoring Board Web Site

Date: February 1, 1999
Creator: U.S. Census Monitoring Board – Presidential Members
Description: U.S. Census Monitoring Board is a bipartisan board charged with monitoring the Bureau of the Census' preparations for the 2000 Census and reporting its findings to Congress and the President.
Contributing Partner: UNT Libraries Government Documents Department
Census Monitoring Board – Congressional Members

Census Monitoring Board – Congressional Members

Date: June 26, 1998
Creator: Census Monitoring Board – Congressional Members
Description: Congress established the Census Monitoring Board to observe and monitor all aspects of the preparation and implementation of the 2000 decennial census. The method employed by the Census to count over 275 million Americans in 2000.
Contributing Partner: UNT Libraries Government Documents Department
A Guide to Statistical Adjustment: How it Really Works.

A Guide to Statistical Adjustment: How it Really Works.

Date: May 23, 2001
Creator: U.S. Census Monitoring Board – Congressional Members
Description: Congress established the Census Monitoring Board to observe and monitor all aspects of the preparation and implementation of the 2000 decennial census. After the completion of the 200 census, many thoughtful parties continue a sincere debate over the implementation of statistical adjustment as a means of increasing the accuracy of the census and for its use in redistricting and the allocation of government funds and services. On March 1, 2001, the Census Bureau's Executive Steering Committee overseeing the post-census evaluation phase, the Accuracy and Coverage Evaluation (A.C.E.), recommended against adjusting the count. Reasonable people, including leading statisticians, have reviewed the statistical adjustment methodology and have raised legitimate questions. This report attempts to put that methodology into perspective and add to what will be further debate and discussion on how all of us as shareholders can continue to work together to ensure the most accurate census possible.
Contributing Partner: UNT Libraries Government Documents Department
The 2010 Decennial Census: Background and Issues

The 2010 Decennial Census: Background and Issues

Date: May 24, 2010
Creator: Williams, Jennifer D.
Description: The U.S. Constitution--Article 1, Section 2, clause 3, as modified by Section 2 of the Fourteenth Amendment--requires a population census every 10 years, to serve as the basis for reapportioning seats in the House of Representatives. Decennial census data also are used for within-state redistricting and in certain formulas that determine the annual distribution of more than $400 billion dollars in federal and state funds. This report discusses the major innovations that were planned for the 2010 census, problems encountered with the attempt to automate certain census field operations, the persistent differential census undercount of less advantaged groups in the population, and efforts to ensure an equitable census.
Contributing Partner: UNT Libraries Government Documents Department
The quantitative failure of human reliability analysis

The quantitative failure of human reliability analysis

Date: July 1, 1995
Creator: Bennett, C.T.
Description: This philosophical treatise argues the merits of Human Reliability Analysis (HRA) in the context of the nuclear power industry. Actually, the author attacks historic and current HRA as having failed in informing policy makers who make decisions based on risk that humans contribute to systems performance. He argues for an HRA based on Bayesian (fact-based) inferential statistics, which advocates a systems analysis process that employs cogent heuristics when using opinion, and tempers itself with a rational debate over the weight given subjective and empirical probabilities.
Contributing Partner: UNT Libraries Government Documents Department
Experiences of fitting isotherms to data from batch sorption experiments for radionuclides on tuffs

Experiences of fitting isotherms to data from batch sorption experiments for radionuclides on tuffs

Date: November 1, 1989
Creator: Polzer, W.L. & Fuentes, H.R.
Description: Laboratory experiments have been performed on the sorption of radionuclides on tuff as site characterization information for the Yucca Mountain Project. This paper presents general observations on the results of curve-fitting of sorption data by isotherm equations and the effects of experimental variables on their regressional analysis. Observations are specific to the effectiveness and problems associated with fitting isotherms, the calculation and value of isotherm parameters, and the significance of experimental variables such as replication, particle size, mode of sorption, and mineralogy. These observations are important in the design of laboratory experiments to ensure that collected data are adequate for effectively characterizing sorption of radionuclides on tuffs or other materials. 13 refs., 2 figs., 4 tabs.
Contributing Partner: UNT Libraries Government Documents Department
Statistical Tests of System Linearity Based on the Method of Surrogate Data

Statistical Tests of System Linearity Based on the Method of Surrogate Data

Date: November 4, 1998
Creator: Hunter, N.; Paez, T. & Red-Horse, J.
Description: When dealing with measured data from dynamic systems we often make the tacit assumption that the data are generated by linear dynamics. While some systematic tests for linearity and determinism are available - for example the coherence fimction, the probability density fimction, and the bispectrum - fi,u-ther tests that quanti$ the existence and the degree of nonlinearity are clearly needed. In this paper we demonstrate a statistical test for the nonlinearity exhibited by a dynamic system excited by Gaussian random noise. We perform the usual division of the input and response time series data into blocks as required by the Welch method of spectrum estimation and search for significant relationships between a given input fkequency and response at harmonics of the selected input frequency. We argue that systematic tests based on the recently developed statistical method of surrogate data readily detect significant nonlinear relationships. The paper elucidates the method of surrogate data. Typical results are illustrated for a linear single degree-of-freedom system and for a system with polynomial stiffness nonlinearity.
Contributing Partner: UNT Libraries Government Documents Department
Test of CPT Invariance in B Factories

Test of CPT Invariance in B Factories

Date: February 2, 1999
Creator: Yang, Songhoon
Description: Feasibility of setting limits on CPT violating parameters for the case of both CP conjugate and semileptonic decays of neutral Bd mesons were examined. For the case of semileptonic final states of neutral Bd meson decays, bounds on CPT violating parameters at the level of few percent can be easily obtained. This sensitivity is better than the similar analysis using the CP conjugate final states of neutral Bd meson decays mainly due to the substantial increase on the statistics.
Contributing Partner: UNT Libraries Government Documents Department
Testing the Nature of Kaluza-Klein Excitations at Future Lepton Colliders

Testing the Nature of Kaluza-Klein Excitations at Future Lepton Colliders

Date: September 3, 1999
Creator: Rizzo, Thomas G.
Description: With one extra dimension, current high precision electroweak data constrain the masses of the first Kaluza-Klein excitations of the Standard Model gauge fields to lie above {approx_equal} 4 TeV. States with masses not much larger than this should be observable at the LHC. However, even for first excitation masses close to this lower bound, the second set of excitations will be too heavy to be produced thus eliminating the possibility of realizing the cleanest signature for KK scenarios. Previous studies of heavy $Z'$ and $W'$ production in this mass range at the LHC have demonstrated that very little information can be obtained about their couplings to the conventional fermions given the limited available statistics and imply that the LHC cannot distinguish an ordinary $Z'$ from the degenerate pair of the first KK excitations of the {gamma} and Z. In this paper we discuss the capability of lepton colliders with center of mass energies significantly below the excitation mass to resolve this ambiguity. In addition, we examine how direct measurements obtained on and near the top of the first excitation peak at lepton colliders can confirm these results. For more than one extra dimension we demonstrate that it is likely that ...
Contributing Partner: UNT Libraries Government Documents Department
29th Annual PolyMAC Meeting: book of abstracts

29th Annual PolyMAC Meeting: book of abstracts

Date: July 23, 1999
Creator: Balazs, B
Description: A sixteen-run, Resolution IV, fractional factorial screening design has been used to evaluate the relative significance of seven independent material and process variables for an electrically deposited commercial acrylic paint. A Resolution IV design was chosen so that variable interactions could be detected without any interference from the effects of the variables themselves. Because resource limitations did not permit use of a Resolution V design, the two-way interactions were confounded with one another in groups of three, which unfortunately made interpretation of the results more complicated. Each design point was replicated once and a pair of centerpoints were run at the beginning, in the middle and at the end of the design points. A total of 38 test panels were prepared. Independent variables used in this experiment were total charge, current density, mixer speed, silica content, crossover point, temperature and solids fraction. The magnitude of each independent variable's effect on the dependent response variables was estimated by fitting a first-order model with two-way interaction terms. Three-way interactions were assumed to be insignificant. Interaction confounding was eliminated by using the significance of the independent variables to determine which of the three possible interactions was significant. Data analysis was performed using the ...
Contributing Partner: UNT Libraries Government Documents Department
FIRST PREV 1 2 3 NEXT LAST