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.
A form of hypothesis testing, the t-test is just one of many tests used for this purpose. Statisticians must use tests other than the t-test to examine more variables, as well as for test with larger sample sizes. For a large sample size, statisticians use a z-test.