Returns the two-tailed Student's t-distribution.
The Student's t-distribution is used in the hypothesis testing of small sample data sets. Use this function in place of a table of critical values for the t-distribution.
The T.DIST.2T function syntax has the following arguments (argument: A value that provides information to an action, an event, a method, a property, a function, or a procedure.):
- X Required. The numeric value at which to evaluate the distribution.
- Deg_freedom Required. An integer indicating the number of degrees of freedom.
- If any argument is nonnumeric, T.DIST.2T returns the #VALUE! error value.
- If deg_freedom < 1, T.DIST.2T returns the #NUM! error value.
- If x < 0, then T.DIST.2T returns the #NUM! error value.
The example may be easier to understand if you copy it to a blank worksheet.
How do I copy an example?
- Select the example in this article. If you are copying the example in Excel Online, copy and paste one cell at a time.
Important: Do not select the row or column headers.
Selecting an example from Help
- Press CTRL+C.
- Create a blank workbook or worksheet.
- In the worksheet, select cell A1, and press CTRL+V. If you are working in Excel Online, repeat copying and pasting for each cell in the example.
Important: For the example to work properly, you must paste it into cell A1 of the worksheet.
- To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.
After you copy the example to a blank worksheet, you can adapt it to suit your needs.
||Value at which to evaluate the distribution
||Degrees of freedom
||Two-tailed distribution (0.054645, or 5.46 percent)
Note To view the result as a percentage, select the cell, and then on the Home tab, in the Number group, click the arrow next to Number Format, and click Percentage.