Which Week has a Result of l 10–30, and an Attendance larger than 57,312?
CREATE TABLE "schedule" (
  "week" real,
  "date" text,
  "opponent" text,
  "result" text,
  "game_site" text,
  "record" text,
  "attendance" real
);
SELECT AVG("week") FROM "schedule" WHERE "result"='l 10–30' AND "attendance">'57,312';