What is CONFIDENCE.T function in Excel? CONFIDENCE.T function is one of Statistical functions in Microsoft Excel that returns the confidence interval for a population mean, using a Student’s t distribution. Syntax of CONFIDENCE.T function CONFIDENCE.T(alpha,standard_dev,size) The CONFIDENCE.T function syntax has the following arguments: Alpha Required. The significance level used to compute the confidence level. The confidence level equals 100*(1 – alpha)%,…