Confidence interval and confidence level are interrelated but are not exactly the same. Microsoft Excel makes it simple to calculate confidence intervals using its STDEVA and CONFIDENCE.T functions.

" Excel template that automatically logs timed values, calculates a 95% confidence interval around your average, and the number of samples required to achieve a desired confidence interval. Excel ...

In Excel, this can be achieved by using the STDEV function. 5. Calculate the VaR for various confidence intervals. In Excel, this can be achieved by using the NORM.INV function. This function ...