Anthropology homework help. Exercise 6-18 Sheridan Industries is a leading manufacturer of golf balls Each golf ball requires 1 minute of direa labor time to complete. Sheridan used 7,300 direct labor hours in July to produce 431,400 golf balls. Sheridan’s standard labor rate is $13per direct labor hour, and the actual labor rate in July was $10.83. Calculate Sheridans direct labor ef?ciency variance for July. (If varlance ls zero, select "Not Applicable" and enter 0 for the amounts.) Direct labor ef?ciency variance sl Unfavorable FavorableuNK To 15×7 Nut Applicable unit 10 vxnso