JIck Corporation is a small producer or syntneuc motor oll. vuring iviay, tne company proaucea s,uvu cases ot iubricant. Eacri 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 $20,484. It also incurred average direct labor costs of $15 per hour for the 4,191 hours worked in May by its production personnel. Manufacturing overhead for the month totaled $9,007, of which $2,200 was considered fixed. Slick's standard cost information for each case of synthetic motor oil is as follows. 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. Complete this question by entering your answers in the tabs below. Compute the materials price and quantity variances. (Indicate the effect of each variance by selecting "Favorable" or "Unfavorable". Select "None" and enter "0" for no effect (i.e., zero variance). Do not round intermediate calculations and round your final answers to the nearest whole dollar amount.)