Question: A purchasing agent has requested quotes for valve gaskets with diameters of 3.00.018 inches. SPC studies of three suppliers have indicated that their processes are

A purchasing agent has requested quotes for valve gaskets with diameters of 3.00.018 inches. SPC studies of three suppliers have indicated that their processes are in statistical control and produce measurements that are normally distributed with the following statistics Supplier 1: =3 inches =0.009 inch Supplier 2: =3 inches =0.0044 inch Supplier 3: =2.99 inches =0.003 inch Assuming that all suppliers offer the same price and delivery reliability/flexibility, which supplier should the agent purchase from? Explain your reasoning
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