Parker Plastic, Incorporated, manufactures plastic mats to use with rolling office chalrs. Its standard cost information for lest year follows: Parker Plastic had the following actual results for the past year: Required: Falculate Porker Plastic's direct labor rate and efficlency variances. Calis Note: Do not round Intermedlate calculations. Indicate the effect of each varlance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (l.e., zero varlance)