Whole document tree CONFIDENCEDescriptionCONFIDENCE function returns the confidence interval for a mean. @x is the significance level, @stddev is the population standard deviation, and @size is the size of the sample. If @size is non-integer it is truncated. If @size < 0 CONFIDENCE returns #NUM! error. If @size is 0 CONFIDENCE returns #DIV/0! error. This function is Excel compatible. |