In a Wilcoxon Signed-Rank Test for Matched Pairs with N

question 120

Multiple Choice

In a Wilcoxon signed-rank test for matched pairs with n = 32, the rank sums of the positive and negative differences are 367.5 and 160.5, respectively. Given this information, what is the value of the standardized test statistic z?

• A) 3.764
• B) 1.935
• C) 1.882
• D) 1.391

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Definitions:

Independent Variable

A variable that is manipulated in an experiment to observe its effect on a dependent variable.

Variance Inflation Factor

A measure used to detect the presence of multicollinearity in a regression analysis.

Independent Variables

Variables in an experiment or model that are manipulated or changed to observe their effect on dependent variables.

Multiple R

Represents a measure of the correlation between observed and predicted values of a variable in multiple regression analysis, indicating the strength and direction of a linear relationship.