Market Manufacturing Inc. has developed the following standards for one of its products. The materials are not substitutable. Material 1 Material 2 Direct labor Total variable cost per unit 5 yards 6 pieces 3 hours $ 6/ yard $ 5/ plece $24/ hour $ 30 $ 30 $ 72 $ 132 The records for March showed the following actual results: Material 1 Purchased Used Purchased Used Material 2 10,000 yards for $58,000 9,500 yards 15,000 pieces for $78,750 12,100 pieces 5,900 hours for $147,500 2,000 units Direct labor Units produced Required: (1) Calculate the following variances: (a) Material purchase price variance for material 1. (b) Material quantity variance for material 1. (c) Material purchase price variance for material 2. (d) Material quantity variance for material 2. (e) Labor rate variance. (f) Labor efficiency variance. (2) Give at least one possible cause for each of the following variances: (a) material 2 quantity variance. (b) labor rate variance. (c) labor efficiency variance