This exercise checks users hypothesis testing skills. Poems by the same author have on average 6.9 new words with a standard deviation of 2.7 words. A new group of poems has on average 8.2 new...
This page from the Bureau of Labor Statistics provides data and statistics on Inflation & Consumer Spending, Wages, Earnings, & Benefits, Productivity, Safety & Health, International Labor,...
BrightStat is a free online application for statistical analyses. Besides many non-parametric tests, BrightStat offers multiple linear regression, logistic regression, ANOVA and repeated measurements...
This resource explains the t-distribution and hypothesis testing (informally) using an example on laptop quality.
This resource discusses sample sizes and how they are chosen.
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