
How to calculate NPS® Margin of Error and other Statistics (Excel Download)
Your boss is unhappy about last month's NPS drop and wants reasons. Before you start hunting for causes, check whether the drop is within margin of error, i.e. did it actually change! Here's how to calculate NPS margin of error (two ways), the Chi-squared test, and which to use when. Or skip ahead and download the free Excel spreadsheet.




