Calculate your T-Value by taking the difference between the mean and population mean and dividing it over the standard deviation divided by the degrees of freedom square root.

How to Calculate a Trimmed Mean in Excel. 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 ...

Once data has been collected, it can be sorted and processed in different ways depending on the purpose of the survey. Finding an average value – mean, median or mode- is often useful.

The geometric mean is the average of a set of products, the calculation of which is commonly used to determine the performance results of an investment or portfolio.

The term describes how much the numbers if a set of data vary from the mean. The syntax to calculate the Standard Deviation is as follows: =STDEV(sampling range) Where the sampling range ...