Data work in 2026 asks for more than chart building. Professionals are expected to clean data, query databases, explain ...

This site has open-access CC-BY-SA materials for an introductory Business Analytics course that heavily emphasizes Microsoft Excel. There are no prerequisites and the target audience is first- or ...

Have you ever found yourself staring at a tangled mess of Excel formulas, wondering if there’s a simpler way to get the results you need? You’re not alone. Whether you’re managing sales data, tracking ...

In this video, learn how to create a cohort analysis in Excel, a model designed to analyze customer retention and understand ...

When you use the statistical analysis features in Excel, you are leveraging one of the most powerful tools available for data manipulation and interpretation. Excel is not just a spreadsheet ...

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Wayne Winston has consulted for several Fortune 500 clients, developed the statistics tracking and rating system used by the Dallas Mavericks, is a two-time Jeopardy champion, has a PhD in Operations ...