CONFIDENCE.T Returns the confidence interval for a population mean, using a Student’s t distribution.
Syntax
CONFIDENCE.T(alpha,standard_dev,size)
Parameters
alpha – The significance level used to compute the confidence level. The confidence level equals 100*(1 – alpha)%, or in other words, an alpha of 0.05 indicates a 95 percent confidence level.
standard_dev – The population standard deviation for the data range and is assumed to be known.
size – The sample size.
Return Value
Returns the confidence interval for a population mean, using a Student’s t distribution.
Reference Data
https://docs.microsoft.com/en-us/dax/dax-function-reference