Confining our attention to the residuals from the linear model,Q let di be the ith residual corresponding to the ith value of the deflator variable xi. The set of residuals, (di), is assumed to be ordered in the following manner. As in the case of the parametric test, we order the values of the deflator variable xm so that xni 5 xmj if and only if i < j. We then index the residuals di so that the index values correspond with those of xmi.I0 Thus if i