Which of the Following Tests Should Be Used to Compare

question 89

Multiple Choice

Which of the following tests should be used to compare the means of three populations if the sample data is ordinal?

• A)one-way analysis of variance
• B)Kruskal-Wallis test
• C)Wilcoxon test
• D)Mann-Whitney test
• E)Friedman test

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Definitions:

Monitor

To observe or track the operation or performance of a system or device, often for the purpose of troubleshooting or optimization.

Error Signal

A signal generated to indicate a discrepancy between a desired outcome and an actual outcome, used for correction in control systems.

Feedback Signal

A signal sent back to the control system from the output, used to correct or adjust the system to maintain desired performance.

Set Point

The desired or target value for a process variable in a control system.