(Appendix) Bernie Services has three labor classes: administrative assistants, para legals, and attorneys. Standard wage rates are as follows: administrative assistants, $30per hour; paralegals, $60 per hour; and attorneys, $125 per hour. For October, the numbers of actual direct labor hours worked and of standard hours for probate cases were as follows:

Actual DLHs

Number of Standard Hours Allowed

Administrative assistant

900

1,008

Paralegal

2,520

2,772

Attorney

1,500

1,260

a. Calculate October’s direct labor efficiency variance and decompose the total into the following components:

1. direct labor mix variance, and

2. direct labor yield variance.

b. Prepare a memo addressing whether management used an efficient mix of labor.