The Rocket Racket Company makes and sells a single product, graphite tennis racket frames. During 20x1, Rocket produced 4500 rackets. Rocket purchased 6000 pounds of direct materials for $33,000 during the year, and 7000 pounds of materials were issued to production. There were no rackets in process at the beginning or end of the period. The payroll for 9,450 direct labor hours totaled $115,290. Rocket has established the following standard costs for each racket:

Materials . . . . . . . . . . . . . . 1.5 lbs. @ $ 6.00/lb. = $ 9.00

Labor . . . . . . . . . . . . . . . . . 2.0 hrs. @ $12.00/hr.= 24.00

Variable mfg. overhead . . . 2.0 hrs. @ $5.00/hr. = 10.00

Fixed mfg. overhead . . . . . 2.0 hrs. @ $2.00/hr. = 4.00

Total standard cost per racket = $47.00

Calculate the following variances:

1. Materials price variance.
2. Materials usage variance.
3. Labor rate variance.
4. Labor efficiency (usage) variance