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QUALITY MANAGEMENT - PMAN 639 A procurement manager has been tracking delivery performance of her suppliers. Based on the following data 1.

QUALITY MANAGEMENT - PMAN 639

A procurement manager has been tracking delivery performance of

her suppliers. Based on the following data

 

1.    Calculate sigma performance of these

suppliers using Z Score tables and rank order them

2.    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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