Motts Incorporated has a standard cost system in which the standard direct labor for a particular product is 0.5 hours at the standard rate of $21.0 per hour. The company has reported the following actual results for the product for October: Actual output Actual direct labor-hours Actual direct labor cost Required: 2,440 units 1,075 hours $ 26,495 a. Compute the labor rate variance for October. b. Compute the labor efficiency variance for October. Note: Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive values. a. Labor rate variance b. Labor efficiency variance