A t-test is an inferential statistic used in hypothesis testing to determine if there is a statistically significant difference between the means of two samples.

Excel has over 475 formulas in its Functions Library, but we've selected the most popular, from date and time functions to mathematics and simple data manipulation.

What Is an Example of a Formula in Excel?. Not only does Excel keep information organized in spreadsheets, it can also save you from manually typing data for each cell separately.