Zan Corporation's production budget for next year contains the following estimates: Units to be produced 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 21,000 24,000 23,000 22,000 In addition, 21,000 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 $8,000. Each unit requires 4 grams of raw materials that cost $1.20 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 4th Quarter is 8,000 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 $12.50 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.