Z-test- definition, formula, examples, uses, z-test vs t-test

Z test

z-test definition z-test is a statistical tool used for the comparison or determination of the significance of several statistical measures, particularly the mean in a sample from a normally distributed population or between two independent samples. Like t-tests, z tests are also based on normal probability distribution. Z-test is the most commonly used statistical tool in research methodology, with it …

Read moreZ-test- definition, formula, examples, uses, z-test vs t-test