The T-Value is a common statistical calculation with a very wide range of applications. In the business world, it can help in making educated financial predictions and projections. For example, a ...

A trimmed mean is much like a standard mean, which you can derive in Excel using the AVERAGE function. However, instead of using all of the data points to create the mean, a trimmed mean will leave ...

Excel workbooks are the next step after you’ve mastered the single Excel spreadsheet. Going back to the ledger idea we used in our Excel spreadsheets guide, think of the workbook as the ledger (or ...