PROBLEM 4 - 11 points Robert Company, which allocates overhead to production on the basis of machine hours, reported the following data for the period just ended: Actual units produced: 12,000 Actual variable overhead incurred: $77,700 Actual machine hours worked: 18,800 Standard variable overhead cost per machine hour: $4.50 Robert estimates that it takes 1.5 hours to manufacture a completed unit. Compute all standards & variances. Show computations