Lucia Company has set the following standard cost per unit for direct materials and direct labor. Direct materials (15 pounds @ $3 per pound) $ 45 Direct labor (2 hours @ $14 per hour) 28 During May the company incurred the following actual costs to produce 8,900 units. Direct materials (137,000 pounds @ $2.80 per pound) $ 383,600 Direct labor (21,500 hours @ $14.10 per hour) 303,150 AR = Actual Rate SR = Standard Rate AQ = Actual Quantity SQ = Standard Quantity AP = Actual Price SP = Standard Price (1) Compute the direct materials price and quantity variances. (2) Compute the direct labor rate variance and the direct labor efficiency variance.