Part C. August Variance Analysis During September of the current year, Robin was asked to perform variance analyses for August. The January operating data provided the standard prices, rates, times, and quantities per case. There were 1,500 actual cases produced during August, which was 250 more cases than planned at the beginning of the month. Actual data for August were as follows: Actual Direct Actual Direct Material Materials Price Materials Quantity per per Unit Case Cream Base 0.160 102 (oz.) Natural Oils (oz.) $ 0.32 31 Bottles 0.42 12.5 Actual Direct Actual Direct Activity Labor Time per Labor Rate Case (minutes) Mixing 18.20 19.50 Filling $ 14.00 5.60 Actual Variable Overhead $ 305.00 Normal Volume (Cases) 1,600 The prices of the materials were different from standard due to fluctuations in market prices. The standard quantity of materials used per case was an ideal standard. The Mixing Department used a higher grade labor classification during the month, thus causing the actual labor rate to exceed standard. The Filling Department used a lower grade labor classification during the month, thus causing the actual labor rate to be less than standard. Intructions 10. Determine and interpret the direct materials price and quantity variances for the three materials. 11. Determine and interpret the direct labor rate and time variances for the two departments. Round hours to the nearest hour. 12. Determine and interpret the factory overhead controllable variance. 13. Determine and interpret the factory overhead volume variance. Assess why are the standard direct labor and direct materials costs in the calculations for parts (10) and (11) based on the actual 1.500-case production volume rather than the planned 1,375 cases of production used in the budgets for questions (6) and (7)?