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A procurement manager has been tracking delivery performance of her suppliers. Based on the following data Calculate sigma performance of these suppliers using Z Score
- A procurement manager has been tracking delivery performance of her suppliers. Based on the following data
- Calculate sigma performance of these suppliers using Z Score tables and rank order them
- Comment on the performance of these suppliers
Supplier | A | B | C |
Number of deliveries | 25 | 54 | 70 |
Number of late deliveries | 3 | 10 | 12 |
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