# paired t-test:

It is a t-test that is used when the test units can be paired. The paired t test provides a hypothesis test of the difference between population means for a pair of random samples whose differences are approximately normally distributed. Please note that a pair of samples, each of which are not from normal a distribution, often yields differences that are normally distributed.

Content Related to paired t-test

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Content Related to paired t-test

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•  Making Sense of Regression Analysis Regression analysis is used to investigate and model the relationship between a response variable (Y) and one or more predictors (Xs). For example, the relationship between fill volume (Y) and filler nozzle setting (X1), filler table rotation speed (X2), spring tension (X3) etc. in the case of a beverage filling process or the relationship between process time (Y) and difference between exit gauge and en....Read more Contributor:  Khwaja Moinuddin Tags: Regression Analysis | Khwaja Moinuddin | variables 03/01/2011  12:00:00 AM EST

•  Surprising Internet Secret Revealed for Better Process Change Have you ever heard this ad? "They laughed when I sat down at the piano - but when I started to play!…"   If it sounds familiar, it may be because AdAge declared it to be arguably the best advertising headline in the 20th century. It was written in 1925 by copywriter John Caples back when something called “direct mail” and lengthy, entertaining sales letters were staples....Read more Contributor:   Tags: Process Improvement | Change Management | Organizational Change 10/05/2015  12:00:00 AM EDT

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