1. The following data resulted from a study taken on a horizont

 1. The following data resulted from a study taken on a horizontal milling machine:

Pieces produced per cycle: 8.

Average measured cycle time: 8.36 minutes.

Average measured effort time per cycle: 4.62 minutes

. Average rapid traverse time: 0.08 minutes.

Average cutting time power feed: 3.66 minutes.

Performance rating: 115 percent.

Allowance (machine time): 10 percent

. Allowance (manual time): 15 percent.

The operator works on the job a full eight-hour day and produces 380 pieces. How many standard hours does the operator earn? What is her efficiency for the eight-hour day?

2. An analyst has estimated that there will be an 84% learning curve for an assembly operation. The first assembly takes 48 minutes and the standard time is set at 6 minutes.

a. How long will it take the operator to reach the standard time?

b. Unfortunately, the operator falls ill after the first week on the new assembly operation and returns after one week. What will be the estimated time for the operator to reach standard time now?

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