What is the average quantity of product that have been shipped by Federal Shipping in November 1996?
Federal Shipping refers to CompanyName = 'Federal Shipping'; DIVIDE(SUM(Quantity), COUNT(ProductID)) where CompanyName = 'Federal Shipping' and ShippedDate > = '1996-11-01 00:00:00' AND ShippedDate < '1996-12-01 00:00:00';
SELECT CAST(SUM(T2.Quantity) AS REAL) / COUNT(T2.OrderID) FROM Orders AS T1 INNER JOIN `Order Details` AS T2 ON T1.OrderID = T2.OrderID INNER JOIN Shippers AS T3 ON T1.ShipVia = T3.ShipperID WHERE T1.ShippedDate LIKE '1996-11%' AND T3.CompanyName = 'Federal Shipping'