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.
The T Test function in Excel is designed to work on two independent sample sets. It allows you to compare the two sample sets, determining the two meansâ difference in relation to the data variation. In simple terms, the result of the test indicates whether the difference is significant or due to random chance.