Erie Company manufactures a mobile fitness device called the Jogging Mate. The company uses standards to control its costs. The labor standards that have been set for one Jogging Mate are as follows: Standard Hours Standard Rate per Hour Standard Cost 18 minutes (or 30 of an hour) $17.00 $5.10 During August, 5,750 hours of direct labor time were needed to make 20,000 units of the Jogging Mate. The direct labor cost totaled $102,350 for the month. Required: 1. What is the labor rate variance and the labor efficiency variance? What is the labor spending variance? 2. The budgeted variable manufacturing overhead rate is $4 per direct labor-hour. During August, the company incurred $21,850 in variable manufacturing overhead cost. Compute the variable overhead rate and efficiency variances for the month. What is the variable overhead spending variance