To Apply the Wilcoxon Rank Sum Test to Determine Whether

question 24

Multiple Choice

To apply the Wilcoxon rank sum test to determine whether the location of population 1 is different from the location of population 2,the:

• A)samples must not be drawn randomly.
• B)samples must be drawn from matched pairs of observations.
• C)samples must be independent.
• D)sample size must be larger than 30.

---

Definitions:

Correlation Coefficient

A numerical measure that assesses the strength and direction of a linear relationship between two quantitative variables.

Covariance Value

A measure indicating the extent to which two variables change together, showing if increases in one variable correspond to increases in another.

Correlation Coefficient

A quantitative indicator showing both the magnitude and direction of a linear association between a pair of variables.

Linear Relationship

A type of association where changes in an independent variable result in proportional changes in a dependent variable, represented by a straight line in graph form.