Wright Industry Inc. uses a standard cost system in which direct materials inventory is carried at standard cost. Wright has established the following standards for the prime costs of one unit of product.

Standard Qty Standard Price Standard Cost/unit

Direct material .. 8 pounds $1.80 per pound $14.40

Direct labor 0.25 hour $8 per hour $2.00

Variable overhead .. 0.5 hours at $2 per hour

During May, the company purchased 160,000 pounds of direct material at a total cost of $304,000. The total direct labor wages for May were $37,800. Wright manufactured 19,000 units of product using 142,500 pounds of direct material and 5,000 direct labor-hours(8 points).

a. Calculate the materials price variance.

b. Calculate the materials quantity variance.

c. Calculate the direct labor rate variance.

d. Calculate the direct labor efficiency variance.