Can you tell me the sum of Intake that has the Faith of rc, and the DCSF number larger than 2428?
CREATE TABLE "central_watford_west_watford_and_oxhey" (
  "name" text,
  "faith" text,
  "type" text,
  "intake" real,
  "dcsf_number" real,
  "ofsted_number" real
);
SELECT SUM("intake") FROM "central_watford_west_watford_and_oxhey" WHERE "faith"='rc' AND "dcsf_number">2428;