Engines Done Right Co. is trying to establish the standard labor cost of a typical engine tune-up. The following data have been collected from time and motion studies conducted over the past month. Actual time spent on the tune-up 1.0 hour Hourly wage rate $16 Payroll taxes 10% of wage rate Setup and downtime 10% of actual labor time Cleanup and rest periods 20% of actual labor time Fringe benefits 25% of wage rate Instructions (a) Determine the standard direct labor hours per tune-up (b) Determine the standard direct labor hourly rate. (c) Determine the standard direct labor cost per tune-up. (d) If a tune-up took 1.5 hours at the standard hourly rate, what was the direct labor quantity variance