The standards for one case of liquid weed killer are as follows: Direct materials Direct labor 8 lb @$10.5b 5 hr $22.4/hr 1.7 hr$ 7.7mr Variable overhead (based on machine hours) During the week ended May 6, the following activity took place 5.523 machine hours were worked. 27,634 lb of raw material were purchased for inventory at a total cost of $295,960. 3,420 cases of finished product were produced. 27.219 lb of raw material were used 16,724 labor hours were worked at an average rate of $22.75 per hour $41,036 actual variable overhead costs were incurred. Required: al late each the following va ances o not round intermediate calculations dicate the e ect of each variance by selecting F for orabie v or unfavorable and None for noe ect e zero variance a. Price variance for raw materia s purchased b. Raw materials usage variance. C. | Direct labor rate vanance d. Direct labor efficiency variance. e. Variable overhead spending variance. f. Variable overhead efficiency variance