Defense Federal Acquisition Regulation Supplement (DFARS), Army Federal. Acquisition Regulation Supplement (AFARS), and/or the Department of Defense Grant. and Agreement Regulations (DoDGARs) as well as all other applicable laws and.
Z-test is a statistical test where normal distribution is applied and is basically used for dealing with problems relating to large samples when n â¥ 30. Don't miss these related articles: 1  1 ANOVA.
z Score. A z-score (aka, a standard score) indicates how many standard deviations an element is from the mean. A z-score can be calculated from the following formula. z = (X - Î¼) / Ï. where z is the z-score, X is the value of the element, Î¼ is the population mean, and Ï is the standard deviation.