Thrown if the given data contains zero valid pairs (valid pairs are non-NaN and unequal), or if
DefaultExactPvalue equals true for n > 30;
Remarks
Paired observations where either value is missing, or where the difference between values
is zero, are ignored.
The alpha level is set to the current value specified by the
static DefaultAlpha property. The form of the hypothesis test is set to the
current DefaultType. Whether an asymptotic p-value or an exact p-value is calculated
is determined by the current DefaultExactPValue.