The article �statistical evidence of discrimination� (j. amer. statist. assoc., 1982: 773�783) discusses the court case swain v. alabama (1965), in which it was alleged that there was discrimination against blacks in grand jury selection. census data suggested that 25% of those eligible for grand jury service were black, yet a random sample of 1050 people called to appear for possible duty yielded only 177 blacks. using a level .01 test, does this data argue strongly for a conclusion of discrimination?