Asked by Kacper Mazurek on Jun 30, 2024

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The Wilcoxon signed rank test statistic is approximately normally distributed whenever the sample sizes are larger than or equal to:

A) 10
B) 20
C) 25
D) 35
E) 45

Sample Sizes

Refers to the number of observations or data points collected in a sample from a population.

Normally Distributed

A probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Wilcoxon Signed Rank Test

A non-parametric test that compares two paired or matched samples to assess if their population mean ranks differ.

  • Gain insight into the fundamentals and practical use of the Wilcoxon signed rank test for paired data.
  • Comprehend the connection between sample size and the suitability of nonparametric test approximations.
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CG
Cloee GrahamJul 05, 2024
Final Answer :
C
Explanation :
The Wilcoxon signed rank test statistic is approximately normally distributed when the sample sizes are larger than or equal to 25.