Moates Corporation makes a product with the following standard costs Standard Quantity or Standard Price or Rate 6.5 kilos 0.2 hours 0.2 hours Direct materials $1.00 per kilo $21.00 per hour $7.00 per hour Direct labor Variable overhead In January, the company produced 5,800 units using 38,740 kilos of the direct material and 1,110 direct labor-hours. During the month, the company purchased 41,000 kilos of the direct material at a total cost of $49,200. The actual direct labor cost for the month was $20,979 and the actual variable overhead cost was $6,993. The company applies variable overhead on the basis of direct labor-hours. Compute the labor efficiency variance. a. b. Compute the labor rate variance Compute the variable overhead efficiency variance. c. d. Compute the variable overhead efficiency variance