CREATE TABLE Product_Suppliers (supplier_id VARCHAR, total_amount_purchased INT)

Find the id of suppliers whose average amount purchased for each product is above 50000 or below 30000.
SELECT supplier_id FROM Product_Suppliers GROUP BY supplier_id HAVING AVG(total_amount_purchased) > 50000 OR AVG(total_amount_purchased) < 30000
SELECT "supplier_id" FROM "Product_Suppliers" GROUP BY "supplier_id" HAVING AVG("total_amount_purchased") < 30000 OR AVG("total_amount_purchased") > 50000