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Kappa as a Measure of Concordance in Categorical Sorting
This applet, created by professor Richard Lowry of Vassar College, calculates unweighted kappa and kappa with linear and quadratic weightings, along with some other measures of concordance. Lowry has provided the option...
Basic Linear Correlation and Regression: Data-Import Version
The following pages calculate r, r-squared, regression constants, Y residuals, and standard error of estimate for a set of N bivariate values of X and Y, and perform a t-test for the significance of the obtained value...
Confidence Interval for the Estimated Mean of a Population
Given a sample of N values of X randomly drawn from a normally distributed population, this program will calculate the .95 and .99 confidence intervals (CI) for the estimated mean of the population. Data entry is simple...
Log-Linear Analysis for an AxBxC Contingency Table
Richard Lowry of Vassar College has created a log-linear analysis which is a version of chi-square analysis. The relevant values are calculated by way of weighted natural logarithms. This page will calculate several...
Practice Questions for Business Statistics
This site offers a list of sample questions that can be used when teaching basic probability concepts, probability distributions, data collection methods, inferential statistics, hypothesis testing, analysis of variance...
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