The term is best known as a mechanical effect, and is used as an analogy to a falling row of dominoes. It typically refers to a linked sequence of events where the time between successive events is relatively small.
9 terms. What is the difference between a z test and a t-test. Z: tests probability sample was drawn from a population with a known mean and known standard deviation. T; tests probability sample was drawn from a population with known mean but unknown standard deviation. z-test.
T-Test is a term from statistics that allows for the comparison of two data populations and their means. The test is used to see if the two sets of data are significantly different from one another. ... two-sample t-test examines whether two samples are different and is commonly used when the variances of two normal distributions are unknown and when an experiment uses a small sample size.