Marvel Parts, Incorporated, manufactures auto accessories. One of the company's products is a set of seat covers that can be adjusted to fit nearly any small car. The company uses a thandard cost system for all of its products. According to the standards that have been set for the seat covers, the factory should work 2,850 hours each month to produce 1,900 sets of covers. The standard costs associated with this level of production are: During August, the factory worked only 2,800 dinect laboribours and produced 2,000 sets of covers. The foliowing actual costs were recorded during the month: At standard, each set of covers should require 5.6 yards of material. Al of the materias purchased diaring the month were used in production. Required: 1. Compute the materials price and quantity variances for August. 2. Compute the labor rate and efficiency variances for August 3. Compute the variable overhead rate and efficiency variances for August (Do not round intermediate calcutations. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfivorable, ond "None" for no effect (i.e., zero variance). Input all amounts as positive values.)