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Topic: Statistical analysis


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  Inferring From Data
Statistical analysis has also come to be seen in many scientific disciplines as indispensable for drawing reliable conclusions from empirical results.This new field of mathematics found so extensive a domain of applications.
Statistical inference is refer to extending your knowledge obtain from a random sample from a population to the whole population.
In a statistical hypothesis test, the P value is the probability of observing a test statistic at least as extreme as the value actually observed, assuming that the null hypothesis is true.
home.ubalt.edu /ntsbarsh/stat-data/Topics.htm   (16052 words)

  
 Statistics - Wikipedia, the free encyclopedia
For example, the statistical significance of a trend in the data — which measures the extent to which the trend could be caused by random variation in the sample — may not agree with one's intuitive sense of its significance.
A common goal for a statistical research project is to investigate causality, and in particular to draw a conclusion on the effect of changes in the values of predictors or independent variables on a response or dependent variable.
Early statistical models were almost always from the class of linear models, but powerful computers, coupled with suitable numerical algorithms, caused a resurgence of interest in nonlinear models (especially neural networks and decision trees) and the creation of new types, such as generalised linear models and multilevel models.
en.wikipedia.org /wiki/Statistical_analysis   (3171 words)

  
 Defense Procurement and Acquisition Policy - Contract Pricing Reference Guide   (Site not responding. Last check: 2007-11-02)
Statistics is a science which involves collecting, organizing, summarizing, analyzing, and interpreting data in order to facilitate the decision-making process.
Inferential or inductive statistics are methods of using a sample data taken from a statistical population to make actual decisions, predictions, and generalizations related to a problem of interest.
Statistical sampling is particularly useful in the analysis of a large bill of materials.
www.acq.osd.mil /dpap/contractpricing/vol2chap3.htm   (6386 words)

  
 Statistical Analysis   (Site not responding. Last check: 2007-11-02)
A statistic is a number that is derived from your data, for example a mean (average) or a standard deviation.
The statistics for each factor level or column are contained in a single row, and each type of statistic is contained in a single column.
A very large number of statistical techniques have been developed to handle many different types of data and relationships between them, and it can be difficult and confusing to choose the correct techniques for a given set of data and the requirements of your investigation.
www.personal.rdg.ac.uk /~snsstern/resources/excel/helpfile/analysis.htm   (881 words)

  
 SwRI Statistical Analysis
The Statistical Analysis group was established more than 22 years ago to implement statistical approaches to solving research and development problems in the physical and engineering sciences.
Statistics aid in the efficient design and analysis of experiments, in the improvement of technology and productivity, and in problem-solving and decision-making processes.
Statistical modeling, regression analysis, and experimental design are a few of the techniques used to aid in the statistical support of a variety of projects.
www.swri.org /4org/d08/emmres/statana/home.htm   (107 words)

  
 Statistical Data Analysis   (Site not responding. Last check: 2007-11-02)
What distinguishes data mining from conventional statistical data analysis is that data mining is usually done for the purpose of "secondary analysis" aimed at finding unsuspected relationships unrelated to the purposes for which the data were originally collected.
The decision-oriented methods treat statistics as a matter of action, rather than inference, and attempt to take utilities as well as probabilities into account in selecting actions; the inference-oriented methods treat inference as a goal apart from any action to be taken.
Survival analysis is suited to the examination of data where the outcome of interest is 'time until a specific event occurs', and where not all individuals have been followed up until the event occurs.
www.iph.ufrgs.br /corpodocente/marques/cd/rd/arsham/opre330.htm   (16032 words)

  
 Statistical Consultant for Research Proposals and Statistical Analysis
If you are a doctoral student or funded researcher in need of help with your research proposal or data analysis, I am qualified to help you with the statistical aspects of your study and I am prepared to work to your schedule.
I have a Masters degree in statistics and over 12 years of experience as a statistical consultant to doctoral students and researchers in the areas of psychology, education, social science, medicine, and many other fields.
I guarantee that I will use the proper statistics for your study, you will completely understand the meaning of the results, and the analysis will be completed on time, or I will refund your money.
www.statisticallysignificantconsulting.com   (579 words)

  
 Advanced Statistical Analysis Software
Principal components analysis is often used in conjunction with multiple regression in an attempt to reduce the number of predictor variables.
Factor analysis is used to identify and group variables by their common dimensions.
Multiple correspondence analysis (perceptual mapping) is a very powerful and easy to use technique for studying the relationships between two or more categorical variables.
www.statpac.com /statistical-analysis.htm   (665 words)

  
 Using Excel for Data Analysis
A statistical package lets you choose as many variables as you wish for descriptive statistics, whether or not they are contiguous.
A statistical package would do this task without any need to sort the data or copy it to another column, and the output would always be properly labeled to the extent that you provide labels for your variables and treatment groups.
Using a statistical program, the data would normally be arranged with the rows representing the subjects, and the columns representing variables (as they are in our sample data).
www-unix.oit.umass.edu /~evagold/excel.html   (3317 words)

  
 Meta-Analysis of State Polls - election.princeton.edu
My analysis of this is in the validation of 2004 results.
Using statistical methods of meta-analysis, I use polls to calculate a starting point, referred to as "decided voters only." This result is an uncorrected snapshot of where the polls stand.
Bias analysis: The potential effects of differential turnout, splitting undecided voters, or systematic polling bias are as follows.
synapse.princeton.edu /~sam/pollcalc.html   (11833 words)

  
 SAS | Statistics
From corporations and government agencies to research institutes and universities, increasingly organizations are turning to statistical analysis to guide decision-making processes.
While there are many statistical analysis tools on the market today, only SAS provides a complete, comprehensive and integrated platform for data analysis.
Ready-to-use procedures handle a wide range of statistical analyses, including analysis of variance, regression, categorical data analysis, multivariate analysis, survival analysis, psychometric analysis, cluster analysis, and nonparametric analysis.
www.sas.com /technologies/analytics/statistics   (801 words)

  
 CJCC - Statistical Analysis Center
The Statistical Analysis Center (SAC) for the State of Georgia was founded under the Federal Statistical Analysis Center Grant program in January 1990 administered by the U.S. Bureau of Justice Statistics.
The SAC is monitored by the Statistical Analysis Center Committee as well as by the entire Council.
Administer surveys and conduct statistical analysis regarding issues deemed prudent by the Council and other clients and stakeholders of the criminal justice system.
www.state.ga.us /cjcc/sac.html   (590 words)

  
 Statistical Analysis (via CobWeb/3.1 planetlab2.netlab.uky.edu)   (Site not responding. Last check: 2007-11-02)
Advanced numerical modeling and analysis to solve problems in science, engineering, commerce and public policy.
The TAOS Statistical Analysis Package (TSAP) is an integrated TAOS module that provides detailed information for forecasting site-specific perils for a variety of return periods.
Using a distribution fitted to the hazard assessment results (and incorporating the uncertainty in estimating the parameters for the distribution), the TASP generates maximum wind values for 10,000 epochs.
www.kinanco.com.cob-web.org:8888 /Statistical_analysis.htm   (341 words)

  
 How to choose a statistical test
Commonly used parametric tests are listed in the first column of the table and include the t test and analysis of variance.
There are often biological or chemical reasons (as well as statistical ones) for performing a particular transform.
A formal statistical test (Kolmogorov-Smirnoff test, not explained in this book) can be used to test whether the distribution of the data differs significantly from a Gaussian distribution.
www.graphpad.com /www/Book/Choose.htm   (1912 words)

  
 NCSS, PASS, & GESS: Statistics, Graphics, Power Analysis, Sample Size, & Microarray Analysis
PASS is the best power analysis and sample size tool on the market.
NCSS is a comprehensive, accurate, and easy-to-learn statistical analysis and graphics system for Windows.
GESS is our new comprehensive package for statistical analysis of microarray gene expression data.
www.ncss.com   (142 words)

  
 HockeyAnalysis.com » Statistical Analysis   (Site not responding. Last check: 2007-11-02)
But, this is one of those cases where the surface statistics don’t tell you the whole story.
To take the analysis a bit further I also looked at each teams records against the bottom 10 and middle 10 teams in the league.
I am working on devising a statistical method to accurately predict which team will win an upcoming game as well as a Power Rankings formula, both of which I hope to unveil in a few weeks time.
hockeyanalysis.com /?cat=39   (3705 words)

  
 Interactive Statistical Calculation Pages
A related page: Time Series' Statistics calculates these statistics, and also the overall mean and variance, and the first and second partial autocorrelations.
Analysis of "1-degree of freedom" data -- performs interactive frequentist and Bayesian conditional tests for counts data having one degree of freedom.
Single-period Inventory Analysis -- computes the optimal inventory level over a single cycle, from up-to-28 pairs of (number of possible item to sell, and their associated non-zero probabilities), together with the "not sold unit batch cost", and the "net profit of a batch sold".
statpages.org   (9549 words)

  
 ACJC - Statistical Analysis Center
The Statistical Analysis Center (SAC) serves as the research arm of the Arizona Criminal Justice Commission.
SAC was created to collect, analyze and report on the state of criminal justice issues in Arizona by evaluating programs and policies as requested by the Arizona Criminal Justice Commission or required by statute for local, state and federal criminal justice agencies.
The SAC is the statewide equivalent of the national Bureau of Justice Statistics (BJS) and is an active member of the Justice Research and Statistics Association (JRSA).
acjc.state.az.us /sac/index.asp   (245 words)

  
 Statistical Analysis Center
The Statistical Analysis Center (SAC) program was established in 1973 as the key component of the Comprehensive Data Systems (CDS) program of the Law Enforcement Assistance Administration, and operated as part of the Governor’s Office of Criminal Justice Programs.
The purpose of this program was to help the states improve crime statistics, perform objective analyses of criminal justice data, prepare statistical reports on crime and promote the development of criminal justice information and statistical systems.
As part of the office of Office of Justice Programs, the mission of the Statistical Analysis Center is to provide South Carolina with a centralized capability of conducting objective analyses to meet critical planning needs and address statewide and system-wide criminal justice policy issues.
www.scdps.org /ojp/statistical_analysis.html   (433 words)

  
 Statistics.com
Statistics.com is the leading provider of professional development courses in statistics.
Enroll in a Professional Advancement Program to earn a certificate (biostatistics, environmental statistics, data mining, etc.), or just register in specific courses as desired.
Exploration and Analysis of DNA Microarray Data (November 03)
www.statistics.com   (210 words)

  
 Stattucino Statistical Analysis Applet
The data applet offers the possibility of the statistical analysis of data.
The results of a statistical analysis are given in tables and graphs.
The results from a statistical analysis are shown in the results window.
www.stattucino.com /DataApplet.html   (490 words)

  
 Statistical Analysis: Data Analysis and Statistics Software and Training | Minitab
Statistical Analysis: Data Analysis and Statistics Software and Training
Our highly regarded trainers are available to show you when and how to apply the right methods to achieve your quality goals.
Minitab is pleased to announce the Minitab 14.2 maintenance update featuring new statistical capabilities, enhanced quality tools, and expanded graph editing capabilities.
www.minitab.com   (239 words)

  
 Florida Statistical Analysis Center (FSAC)
Reports that provide both summary and detail information are issued yearly, and are available here from 1994 up to the most recently released reports.
The Florida Statistical Analysis Center is housed, funded and administered by the Florida Department of Law Enforcement with partial funding from the Bureau of Justice Statistics, U.S. Department of Justice and support from the Justice Research and Statistics Association.
The FSAC analyzes criminal justice data and prepares statistical reports for policy makers, planners, and program developers; and serves as a criminal justice resource for academicians, media, students, and others researching crime in Florida.
www.fdle.state.fl.us /FSAC   (226 words)

  
 Statistical Solutions: Software applications for Statisticians, Clinical Researchers & Data Analysts
Developed under the statistical direction of Harvard's Prof.
Developed according to specifications by leading statisticians, EquivTest provides industry-accepted, validated equivalence procedures for reliable statistical analysis.
Statistical Solutions also carries a full range of other statistical and technical graphing applications.
www.statsol.ie   (307 words)

  
 Statistical Analysis Centers
Statistical Analysis Centers (SACs) are state agencies that collect, analyze, and disseminate justice data.
They contribute to effective state policies through statistical services, research, evaluation, and policy analysis.
The SAC Publication and Technology Awards can be found on the Awards to Statistical Analysis Centers page.
www.jrsa.org /sac/index.html   (110 words)

  
 statistical analysis - dBforums
I was wondering what kind of statistical analysis you can do with asp.net, php, and access.
I just basically need some help on how to perform statistical analysis on data though.
For statisticall analysis I would recommend doing all the work in stored procedures.
www.dbforums.com /t926245.html   (351 words)

  
 Software: Statistics
Lumenaut, statistical and decision analysis tree add-in for Excel
Statistica, a comprehensive, integrated statistical data analysis, graphics, data base management, and custom application development system.
R, a language and environment for statistical computing and graphics.
www.kdnuggets.com /software/statistics.html   (236 words)

  
 Free Statistical Analysis Software
DataPlot Includes scientific visualization, statistical analysis, and non-linear modeling.
Statistical considerations for clinical trials and scientific experiments
Many descriptive statistics and stem and leaf displays
davidmlane.com /hyperstat/Statistical_analyses.html   (107 words)

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