SignedRankTest

SignedRankTest[data] tests whether the median of data is zero. 

SignedRankTest[{data1,data2}] tests whether the median of data1-data2 is zero.

SignedRankTest[dspec,μ0] tests a location measure against μ0.

SignedRankTest[dspec,μ0,"property"] returns the value of "property".

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