Aivarado Company produces a product that requires 7.5 standard direct labor hours per unit at a standard hourly rate of $22.50 per bour. If 8,000 units used 60,200 hours at an hourly rate of $21.95 per hour, what is the direct labor (a) rate variance, (b) time variance, and (c) cosi variance? Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number. a. Direct labor rate variance b. Direct labor time variance c. Direct labor cost variance