Christmas Express makes wreaths in batch sizes of 22. The cutting and assembly process takes 4 minutes per wreath, and the decorating process time is 13 minutes per wreath. It takes 3 minutes to move the wreaths from the cutting and assembly process to the decorating process.

a. Compute the value-added, non-value-added, and total lead times of the wreath process.

Value-added lead time		minutes
Non-value-added lead time:
Move time
Within-batch wait time
Total lead time		minutes

b. Compute the value-added ratio. Round to one decimal place.