The Casings Plant of Wyoming Machines makes plastics challs for the company's calculators. (Each calculator requres one shell) For each of the next two years, Wyoming expects to sell 620,000 calculators. The beginning finished goods Inventory of cholls at the Casings Plant is 70.000 units. However, the target ending finished goods inventory for each year is 25,000 units. Each unit (shell requires 6 ounces of plastic. At the beginning of the year. 270,000 ounces of plastic are in Inventory Management has set a target to have plastic on hand equal to two months sales requirements. Sales and productiori take place overly throughout the year. Required: a. Compute the total targeted production of the finished product for the coming year. b. Compute the required amount of plastic to be purchased for the coming year. (Do not round Intermediate calculations.) a Total targeted production in units Materials to be purchased in ounces