CREATE TABLE table_18580 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

what's the result with incumbent being jack z. anderson
SELECT "Result" FROM table_18580 WHERE "Incumbent" = 'Jack Z. Anderson'
SELECT "Result" FROM "table_18580" WHERE "Incumbent" = 'Jack Z. Anderson'