CREATE TABLE table_36374 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Record" TEXT, "Game Site" TEXT, "Attendance" FLOAT)

Opponent of at boston patriots, and a Week larger than 3 had what average attendance?
SELECT AVG("Attendance") FROM table_36374 WHERE "Opponent" = 'at boston patriots' AND "Week" > '3'
SELECT AVG("Attendance") FROM "table_36374" WHERE "Opponent" = 'at boston patriots' AND "Week" > '3'