PairedTTest
PairedTTest[data] tests whether the mean of data is zero.
PairedTTest[{data1,data2}] tests whether the mean of data1– data2 is zero.
PairedTTest[dspec,μ0] tests a location measure against μ0.
PairedTTest[dspec,μ0,"property"] returns the value of "property".
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