Question: This supermarket has 7 cashier resources serving customers. Processing time for 1 customer is average (median) 3 minutes, with standard deviation of 4 minutes. Customers

This supermarket has 7 cashier resources serving customers. Processing time for

This supermarket has 7 cashier resources serving customers. Processing time for 1 customer is average (median) 3 minutes, with standard deviation of 4 minutes. Customers get to cashier on average 1 minute appart with standard deviation of 1 minute. a. What is the waiting time and total time for customers to go through cashier. b. How many cashier resources can they reduce, keeping the waiting time at less than 2 minutes

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