Management of a T-shirt manufacturer believes if the company applies lean principles, then cycle efficiency can be improved. The following are estimated completion times for different activities in the manufacturing process. Activity Traditional Lean Cutting and sewing processing 19 minutes 19 minutes Wait time before moving to ironing 7 minutes 4 minutes Moving shirts to ironing 9 minutes 5 minutes Ironing shirts 9 minutes 9 minutes Wait time before moving to packaging 5 minutes 3 minutes Moving shirts to packaging 3 minutes 2 minutes Packaging shirts 11 minutes 11 minutes Quality inspection 17 minutes 5 minutes Compute cycle efficiency for the (a) traditional approach and (b) lean approach