Zan Corporation's production budget for next year contains the following estimates: In addition, 30,000 grams of raw materials inventory is on hand at the start of the 1st Quarter and the beginning accounts payable for the 1st Quarter is $6,800. Each unit requires 8 grams of raw materials that cost $1.60 per gram. Management desires to end each quarter with an inventory of raw materials equal to 25% of the following quarter's production needs. The desired ending inventory for the 4 th Quarter is 6,000 grams. Management plans to pay for 60% of raw materials purchases in the quarter acquired and 40% in the following quarter. Each unit requires 0.20 direct labor-hour and direct laborers are paid $11.50 per hour. Required: 1. and 2. Calculate the estimated grams of raw materials that need to be purchased and the cost of raw material purchases for each quarter and for the year as a whole. 3. Calculate the expected cash disbursements for purchases of materials for each quarter and for the year as a whole. 4. Calculate the estimated direct labor cost for each quarter and for the year as a whole