A local real estate appraiser analyzed the sales prices of homes in 2 neighborhoods to the corresponding appraised values of the homes. The goal of the analysis was to compare the distribution of sale-to-appraised ratios from homes in the 2 neighborhoods. Random and independent samples were selected from the 2 neighborhoods from last year's homes sales, 8 from each of the 2 neighborhoods. Identify the nonparametric method that would be used to analyze the data. A) the Wilcoxon Signed-Ranks Test, using the test statistic W B) the Wilcoxon Rank Sum Test, using the test statistic Z C) the Wilcoxon Signed-Ranks Test, using the test statistic Z D) the Wilcoxon Rank Sum Test, using the test statistic T₁

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Quizplus · Accepted Answer

The Wilcoxon Rank Sum Test (also known as the Mann-Whitney U test) is used to compare the distribution of two independent samples. In this case, there are two independent samples (from the two neighborhoods), and the goal is to compare the distribution of sale-to-appraised ratios between them. The test statistic used in the Wilcoxon Rank Sum Test is T1, making choice D the best option. The other options (Wilcoxon Signed-Ranks Test with W or Z statistics) are not appropriate for this scenario because they are used for dependent samples (paired data) and would not be suitable for comparing two independent samples.

A Local Real Estate Appraiser Analyzed the Sales Prices of Homes