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14440CAUSEweb.orgen-useditor@causeweb.orgwebmaster@causeweb.orgThu, 24 Apr 2014 12:00:00 -0400Sat, 29 Jun 2013 12:00:00 -0400http://www.rssboard.org/rss-2-0-1The Student T Test for One Sample
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1365This calculator computes the t-statistic, degrees of freedom (DF), and p-value for the Student's t Test for pairwise differences. The user inputs either the pairs or the differences in the pairs. The null hypothesis is that the mean difference of the pairs is zero.Sun, 24 Feb 2013 11:22:22 -0500IDEAL Modules
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1304The modules in this collection discuss numerous statistical topics with examples and Java applets. Topics covered: Variable Types; Calculations; Histograms; Moments; Quantiles; Probability Definitions, Laws, and Simulations; Binomial, Poisson, and Normal Distributions, Normal Approximation to the Binomial, Central Limit Theorem, Confidence Intervals, Hypothesis Testing, Control Charts, Contingency Tables, Correlation, and Regression.Sun, 24 Feb 2013 10:07:30 -0500Introduction to Quantitative Methods
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1482This course webpage contains 7 lessons for introductory statistics. Each lesson introduces a new statistical topic, provides datasets for exploring concepts, links to instructions for using statistical software, links to online statistical calculators, and provides homework assignments. Topics include: Introduction to Statistical Methods; Graphing & Tabulating Data; Describing Central Tendency, Variability & Skew; Normal Distribution & Standard Scores; Correlation & Regression; Proportions & Contingencies; Sampling & Statistical Inference.Mon, 14 Aug 2006 10:03:29 -0400Additional SOCR Resources
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1448This page provides links to distribution calculators, conceptual demonstration applets, statistical tables, online data analysis packages, function and image-processing tools, and other online computing resources. Key Words: Binomial; Normal; Exponential; Chi-Square; Geometric; Hypergeometric; Negative Binomial; Poisson; Student's T; F-Distribution; Wilcoxon Rank-Sum; Central Limit Theorem; Regression; Normal Approximation to Poisson; Confidence Intervals; Hypothesis Tests; Power; Sample-Size; ANOVA; Galton's Board; Function Plots; Edge Detection; Image Warping & Stretching; Polynomial Model Fitting; Wilcoxon-Mann-Whitney Statistic. Tue, 1 Aug 2006 11:37:00 -0400On-Line T-Table
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1437This page provides a t-table with degrees of freedom from 1 to 30, and 40, 50, 60, 80, 100, 1000, and infinity. Probabilities are from .25 to .0005. Instructions are also provided.Mon, 31 Jul 2006 11:44:40 -0400Techniques for Statistical Analysis
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1396This calculator lets users perform various statistical analyses on their own data. First, select the function you would like to perform from the drop down menu on the left. Choices are ANOVA, Regression & Correlation, Confidence & Prediction Intervals, Hypothesis Testing, Parameter Estimation, Non-Parametric Analysis, and Analysis of Categorical Data. Then, enter your values in the table under the 'Data' tab; under the 'Mapping' tab, select which variables are the dependent and independent variables, then click 'Calculate.' The 'Results' and 'Graphs' tabs will contain the results of the analysis.Mon, 24 Jul 2006 10:54:21 -0400**Statistics Every Writer Should Know
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1346This site provides an introduction to basic statistical concepts for journalists and writers with little math background. Key Words: Mean; Median; Percent Changes; Per capita; Rates; Standard Deviation; Normal Distribution; Margin of Error; Confidence Interval; Data Analysis; Sample Sizes; Statistical Tests; Student's T. Thu, 29 Jun 2006 04:03:25 -0400SPSS tutorial for t-tests.
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1176This tutorial exposes students to conducting t-tests in SPSS. This html based tutorial provides extensive screen shots and two example data sets. Topics covered in the tutorial include one sample, paired and independent samples t-tests and conducting transformations (such as a difference) of the data.Sun, 12 Mar 2006 07:21:12 -0500Reasonable Averages that give Wrong Answers
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1135There is a source of error when using averages, which can be quite serious and often unrecognized. The source of error is illustrated in this article in a quality control problem, a project, an experiment and a game. A Taylor series expansion gives an insight into the nature of the error.Wed, 24 Aug 2005 03:51:00 -0400Minimize Your Losses
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1118This article presents an activity, which may be presented as a game in the classroom, to students on both secondary school and college levels by introducing the averages via the idea of the least combined error.Thu, 18 Aug 2005 01:01:42 -0400Career Records for All Modern Position Players Eligible for the Major League Baseball Hall of Fame
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1077The dataset described in this article contains data on retired Major League Baseball players, eligible for the MLB Hall of Fame. The data can be used to illustrate descriptive statistical methods (numerical, graphical, and tabular) or inferential statistics (hypothesis testing, confidence intervals, etc.). The data is in .dat format.Tue, 26 Jul 2005 02:20:56 -0400A Positively Skewed Distribution
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=946This assignment asks students to explore a set of data which is positively skewed. The data come from a survey of college students asking how vulnerable they feel about the loss of a parent.Fri, 13 May 2005 11:58:24 -0400Examples and Their Data Sets
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=776Each dataset in this collection includes description of the study, description of the data file, statistical topic covered, and reference. Topics addressed include: correlation, one-way ANOVA, Bonferroni multiple comparison procedure, regression (simple, multiple, and loglinear), chi-square, and the t-test. Fri, 13 May 2005 11:46:36 -0400Explanatory Style and Athletic Performance
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=942As described in the web page itself: "This document was prepared as an illustration of the use of both t tests and correlation/regression analysis in drawing conclusions from data in an actual study." The study compares athletic performance of swimmers that are optimists vs. pessimists.Fri, 13 May 2005 11:46:36 -0400Statistics Tools
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http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1595This collection of calculators allows users to perform a number of statistical applications. Each provides background on the procedure and an example. Users can compute Descriptive Statistics and perform t-tests, Chi-square tests, Kolmogorov-Smirnov tests, Fisher's Exact Test, contingency tables, ANOVA, and regression.Wed, 28 Jul 2004 02:47:43 -0400