You can calculate the T-Value in Excel with the mean, standard deviation and degrees of freedom. Since the T-Value is a comparison between sample mean and population mean, both values need to be ...

The interquartile mean is a measure of central tendency. While all values in a data set are used to calculate the mean, only the interquartile range -- the central portion of a data set -- is used to ...

It is difficult to calculate these values manually and while calculators make it easier, Excel is the preferred tool for finding these values over a range of cells.