95% Confidence Interval in Excel using CONFIDENCE.NORM and Standard Error of the Mean A 13 minute video that shows calculation of confidence intervals around a sample mean using both the Confidence.Norm function and a “mamual” calculation using the Standard Error approach. Note: he shows how to create a function that displaces a sentence of the results. https://www.youtube.com/watch?v=TfXR2hdnaDA&list=PLdlFfrVsmlvAz0kKV3EdHJtPdg8PqQYwU&index=64