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Native American (#1) [8.50, 9.48, 8.65 ] Caucasian (#2) [8.27, 8.20, 8.25, 8.14] alpha = 0.15...

Native American (#1) [8.50, 9.48, 8.65 ]

Caucasian (#2) [8.27, 8.20, 8.25, 8.14]

alpha = 0.15

c. Test the difference between the two group using the Wilcoxon rank-sum test.

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