The Nonparametric Tests Discussed in Your Book (Wilcoxon Rank Sum

question 131

Multiple Choice

The nonparametric tests discussed in your book (Wilcoxon rank sum test, sign test, Wilcoxon signed rank test, Kruskal-Wallis test and Friedman test) all require that the probability distributions be:

• A) identical except with respect to location
• B) identical except with respect to spread (variance)
• C) identical except with respect to shape (distribution)
• D) different with respect to location, spread, and shape
• E) different with respect to location

---

Definitions:

Coronary Artery

An artery that supplies blood to the heart muscle itself.

Lipitor

A prescription medication used to lower cholesterol and reduce the risk of heart attack and stroke.

Cholesterol

A waxy, fat-like substance found in all cells of the body, necessary for the creation of hormones, vitamin D, and substances that help digest foods.

Semilunar Valve

A type of heart valve with half-moon-shaped flaps that prevents blood from flowing back into the heart chambers after it has been ejected.