Parker Plastic, Incorpotated, manufactures plastic mats to use whth rolling office chairs its standard cost information for last year follows: Paiker Plastec had the following actual resulis for the past year Required: Calculate Parker Plastic's direct labor rate and efticiency variances Note: Do not round intermediate calculations. Indicate the effect of each variance by selecting "F" for favorable, "U" for. unfavorable, and "None" for no effect (i.e, zero variance)