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Mathematics -- Confidence intervals
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WINKS Statistics Tutorials: Interpreting Statistical p-values
This page, created by WINKS Statistics Tutorials, discusses the understanding of and interpretation of p-values for those who read articles with statistical information. The page provides an introduction to much of the...
Estimating the Population Value of rho on the Basis of Several Observed Sample Values of r
This page will perform the procedure for up to k=12 sample values of r, with a minimum of k=2. It will also perform a chi-square test for the homogeneity of the k values of r, with df=k-1. The several values of r can be...
Multiple Regression: The Confidence Interval of rho
This page will calculate the 0.95 and 0.99 confidence intervals for rho, based on the Fisher r-to-z transformation. To perform the calculations, enter the values of r and n in the designated places, then click the...
HyperStat Online: Power
This site, created by author David M. Lane of HyperStat Online, defines power and explains what factors may affect it, such as significance level, sample size and variance. In addition, their is an activity allowing...
Confidence Intervals & Hypothesis Testing
This site, authored by David M. Lane of HyperStat Online, explains the relationship between hypothesis testing and confidence intervals. Because of the immense similarities between the two procedures many find them to...
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