Multiple Choice
A sample of back pain sufferers rate their level of pain on a scale from 1 to 7. They then undergo acupuncture treatment. Afterwards, they again rate their level of pain. What is the appropriate test for this study?
A) Wilcoxon matched-pairs signed-ranks test
B) Mann-Whitney test
C) Kruskal-Wallis test
D) Spearman test
Correct Answer:
Verified
Correct Answer:
Verified
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