Examlex
Which of the following is a proactive method a firm might use to assess customer satisfaction?
Wilcoxon Rank Sum Test
A nonparametric test that compares two unrelated samples to determine if there is a difference in their central tendency.
Sign Test
A nonparametric method utilized to identify if a median variance exists between paired data points.
Wilcoxon Signed-Rank Test
A nonparametric statistical hypothesis test used to compare two related samples, matched samples, or repeated measurements on a single sample to assess whether their population mean ranks differ.
Matched Paired
A study design in which subjects are paired based on certain criteria, with each pair receiving different treatments for comparison of the effects.
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