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 Standard Deviation in Excel The Standard Deviation is a term used in statistics. The term describes how much the numbers if a set of data vary from the mean.

How to Calculate Standard Deviation of Cash Flows in Excel. When reviewing cash flow data for your small business, knowing the standard deviation can help you determine if the numbers are out of ...

Learn how to calculate Standard Deviationin Excel. The STDEV function can be used to estimate standard deviation based on sample in Excel.