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.
If not the t-test, then what? If the t-test is not appropriate, then one alternative is a nonparametric test, such as Wilcoxonâs test. Another alternative is a permutation test, or a bootstrap. In my opinion, all three alternatives ought to be used more often. Suppose one wishes to test if men are heavier than women in a given population.