The following labor standards have been established for a particular product: Standard labor hours per unit of output 4.0 hours Standard labor rate $17.10 per hour The following data pertain to operations concerning the product for the last month: Required: a. What is the labor rate variance for the month? b. What is the labor efficiency variance for the month? (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.) The following standards have been established for a raw material used to make product O84: Standard quantity of the material per unit of output Standard price of the material 7.4 meters $18.50 per meter The following data pertain to a recent month's operations: The direct materials purchases variance is computed when the materials are purchased. Required: a. What is the materials price variance for the month? b. What is the materials quantity variance for the month? (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.)