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Direct labor variances Alvarado Company produces a product that requires 4 standard direct labor hours per unit at a standard hourly rate of $19.00 per hour. If 3,100 units used 12,800 hours at an hourly rate of $18.43 per hour, what is the direct labor (a) (b) time variance, and (c) cost variance? Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number. rate variance, a. b. c. Direct labor rate variance Direct labor time variance Direct labor cost variance