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4434StatCrunch
http://www.merlot.org/merlot/viewMaterial.htm?id=74665
The package was created to solve many of the problems which exist with the delivery and use of modern statistical software. Many times statisticians develop procedures in languages such as Splus, SAS, Minitab, etc.., which are very specific to statisticians. Students and other potential users may not have access to these languages, and therefore may not be able to use the procedures. By using Java and the World Wide Web, StatCrunch should reach the broadest possible audience of any statistical software of its kind. StatCrunch was chosen as the 2005 Classics Award winner for the Statistics discipline for several reasons. StatCrunch allows any student with internet access the ability to have a reasonably full featured statistical analysis program for minimal cost. This means that students who are taking courses through distance education can now have the same software as students on campus. Students who are working on a statistics assignment at home can now have the same software as they would in a lab on campus. We also believe that StatCrunch represents the beginning of a paradigm shift. As time moves forward we believe that most introductory statistics courses will be taught not with installed software but with internet based software. It is proof that the major obstacles that stand in the way of integrating statistical software into the introductory classroom can be surmounted.National Library of Virtual Manipulatives
http://www.merlot.org/merlot/viewMaterial.htm?id=76833
Large collection of platform independent, interactive, java applets and activities for K-12 mathematics and teacher education.Scatterplot and Correlation Coefficient
http://www.merlot.org/merlot/viewMaterial.htm?id=85674
This is a collection of interactive scatterplots. The simulations display the regression line and allow the usere to change the location of data points, the slope of the regression line, the correlation coefficient, and sample size, as well as it provides rollover help.Linear Regression Calculator
http://www.merlot.org/merlot/viewMaterial.htm?id=81062
This is a virtual linear regression calculator. It allows students to enter data points, experiment with where the line of best fit might be, and then lets them see the correct line of best fit as well as the outliers. You can click through the introduction.Statcato
http://www.merlot.org/merlot/viewMaterial.htm?id=751425
Statcato is an open source Java based software for elementary statistics. It includes just about every chart, statistics, confidence interval, and hypothesis test that is used in the standard elementary statistics course.Theory Behind Linear Regression
http://www.merlot.org/merlot/viewMaterial.htm?id=611033
This applet demonstrates the theory behind linear regression.Guess the Correlation Applet
http://www.merlot.org/merlot/viewMaterial.htm?id=248876
This applet generates a scatterplot each time the user clicks "New Sample". Users can then guess the correlation from the graph and see the actual value. By clicking "Edit data" users can input their own data. Users can also determine the number of points in the plot.Least Squares Demo
http://www.merlot.org/merlot/viewMaterial.htm?id=611002
This is an applet that demonstrates least squares regression.Correlation Applet
http://www.merlot.org/merlot/viewMaterial.htm?id=626915
An applet that allows users to see plots with a specified correlation; to compare plots, varying the correlation and standard deviations of the variables; and to play games to test ability to estimate the correlation coefficient for a given plot. Scatter, Correlation, & Regression Applet
http://www.merlot.org/merlot/viewMaterial.htm?id=254602
SticiGui is a full, interactive stat textbook with lots of applets to illustrate key concepts, dynamic exercises, machine-graded homework etc... This applet allows users to explore concepts related to linear regression. A scatterplot is displayed for which users can select the correlation and sample size. Users can add points by clicking on the graph and can display the standard deviation and regression lines. The view can also be changed to display residual plots.