Who was the succesor that was formally installed on November 8, 1978?
CREATE TABLE "table1_1013168_2" (
  "state_class" text,
  "vacator" text,
  "reason_for_change" text,
  "successor" text,
  "date_of_successors_formal_installation" text
);
SELECT "successor" FROM "table1_1013168_2" WHERE "date_of_successors_formal_installation"='November 8, 1978';