Slick Corporation is a small producer of synthetic motor oil. During May, the company produced 5,000 cases of lubricant. Each case contains 12 quarts of synthetic oil. To achieve this level of production, Slick purchased and used 16,500 gallons of direct materials at a cost of $20,158. It also incurred average direct labor costs of $15 per hour for the 3,937 hours worked in May by its production personnel. Manufacturing overhead for the month totaled $9,896, of which $2,200 was considered fixed. Slick's standard cost information for each case of synthetic motor oil is as follows.

Direct materials standard price$1.30per gallon Standard quantity allowed per case3.25gallonsDirect labor standard rate$16per hour Standard hours allowed per case0.75direct labor hours Fixed overhead budgeted$2,600per month Normal level of production5,200cases per month Variable overhead application rate$1.50per case Fixed overhead application rate ($2,600 5,200 cases)0.50per case Total overhead application rate$2.00per case

Required:

a.Compute the materials price and quantity variances.

b.Compute the labor rate and efficiency variances.

c.Compute the manufacturing overhead spending and volume variances.

d.Prepare the journal entries to:

1. Charge materials (at standard) to Work in Process.

2. Charge direct labor (at standard) to Work in Process.

3. Charge manufacturing overhead (at standard) to Work in Process.

4. Transfer the cost of the 5,000 cases of synthetic motor oil produced in May to Finished Goods.

5. Close any over- or underapplied overhead to cost of goods sold.

a. Materials price variance

Materials quantity variance

b. Labor rate variance

Labor efficiency variance

c. Overhead spending variance

Overhead volume variance

d. Journal entry worksheet

• Record the cost of direct materials charged to production.