Free Tools

Statistics and supply chain tools for your coursework

Supply Chain Network Map

Explore disclosed buyer–supplier relationships in a network or on a globe, with the SEC filing behind every link.

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Tukey Q Critical Value Calculator

Find q* for post-hoc ANOVA comparisons — supports one-way and two-way designs

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Statistics and supply chain tools

Find resampling, experimental design, inventory, forecasting, and other decision tools.

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