Use an unpaired test to look for an effect from treatment A.
Consider the following data on ten patients with viral loads measured under control conditions, after treatment A, and then again after treatment B. Use the given test to check whether the treatment has an effect.

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Patient Control Treatment A Treatment B 6.517 5.619 6.707 4.427 6.109 4.828 4.455 7.660 4.399 4.155 7.142 6.484 7.049 4.514 8.860 5.140 4.612 9.912 6.756 5.670 8.830 7.097 8.183 5.554 6.092 5.974 4.291 9.941 5.956 3.997 10