CREATE TABLE table_5513 ("RBIs" FLOAT, "Player" TEXT, "Team" TEXT, "Date" TEXT, "Opponent" TEXT)

When the team is the Boston Red Sox and the is date July 27, 1946, what are the average RBIs?
SELECT AVG("RBIs") FROM table_5513 WHERE "Team" = 'boston red sox' AND "Date" = 'july 27, 1946'
SELECT AVG("RBIs") FROM "table_5513" WHERE "Date" = 'july 27, 1946' AND "Team" = 'boston red sox'