Does handling a museum object have a positive impact on a sick patient's well-being? To answer this question, researchers at the University College London collected data from 32 sessions with hospital patients (Museum & Society, November 2009). Each patient's health status (measured on a 100-point scale) was recorded both before and after handling museum objects such as archaeological artifacts and brass etchings. The data (simulated) are listed in the accompanying table. The Wilcoxon signed rank test was applied to the data with the results shown in the accompanying SPSS printout.

Health Status Measurements

Wilcoxon Signed Ranks Test

a. Use the information in the printout to find the large sample Wilcoxon signed rank test statistic.
b. Does handling a museum object have a positive impact on a sick patient's well-being? Test using α = .01?

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Session Before After Session Before After 82的的9的了品与a的%列488 E828388J388838E8 1234567890U亿BGL- Ranks Mean Rank Sum of Ranks 3.83 N. AFTER- BEFORE Negative Ranks 11.50 Positive Ranks 20 17.30 404.50 Ties Total 32 AFTER < BEFORE D. AFTER BEFORE C. AFTER= BEFORE Test Statistics AFTER- BEFORE -4.638 Asymp. Sig. (2-tailed) 000 a Based on negative ranks D. Wilcoxen Signed Ranks Test