In a Wilcoxon Matched-Pairs Signed Rank Test with 20 Matched-Pairs

question 9

Multiple Choice

In a Wilcoxon matched-pairs signed rank test with 20 matched-pairs of observations, the observed value of the T statistic based on sample data is 76.33.The corresponding observed z-value is ___________.

• A)−1.79
• B)−2.07
• C)−1.70
• D)−1.59
• E)−1.07

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Definitions:

Incidence of Skin Cancer

The rate at which new cases of skin cancer occur in a population over a specified period, often expressed per 100,000 individuals per year.

Coefficient of Determination

A statistic used in the context of regression analysis to assess the proportion of the variance in the dependent variable that can be explained by the independent variable(s).

Skin Cancer

A type of cancer that develops in the cells of the skin, often due to exposure to ultraviolet radiation from the sun or tanning beds.

UV's

Short for ultraviolet rays, which are electromagnetic radiation with a wavelength shorter than that of visible light but longer than X-rays.