Parker Plastic, Incorporated, manufactures plastic mats to use with rolling office chairs, its standard cost information for last year follows: Parker Plastic had the following actual results for the past year: Required: Calculate Parker Plastic's direct labor rate and efficlency varlances Note: Do not round intermediate calculotions. Indicnte the effect of each voriance by selecting "F" for favoroble, " U " for unfevorable, and "None" for no effect (i.e, zero variance)