11-45 (40 points) Variance analysis, material and labor: The following information is available for Mandalay Company: Required: (a) (10 points) Determine the material price variance based on the quantity of materials purchased. (b) (10 points) Determine the material quantity variance. (c) (10 points) Determine the direct labor rate variance. (d) (10 points) Determine the direct labor efficiency variance