This calculator computes the p-value for comparing two correlation coefficients. Users input two correlation coefficients (R1,R2) and two sample sizes (N1,N2). The null hypothesis is that the...
This calculator computes the correlation coefficient (R) and p-value as well as the linear regression line for observation pairs (x,y) input by the user. The null hypothesis is that the pairs are...
This applet generates confidence intervals for means or proportions. The options for confidence intervals for means include ?z with sigma,? ?z with s,? or ?t.? The options for confidence intervals...
A cartoon to teach about the importance of blinding the researcher to which comparison group the subjects are in. Cartoon by John Landers (www.landers.co.uk) based on an idea from Dennis Pearl (The...
A sketch by Anastasia Mandel reinterpreting Government Bureau by George Tooker (1956) with the statistical caption "Queuing theory and implementation." This is part of a collection of sketches by...
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