Question: Conitnued from Problem 2 (the Sunny Dale Bank example), beisdes being efficient, another manager believed that the customer service time at the drive-through window should

Conitnued from Problem 2 (the Sunny Dale Bank example), beisdes being efficient, another manager believed that the customer service time at the drive-through window should be maintained at a certain degree of consistency. She started to investigate the data collected by the first manager (see below) as to how consistent or variable the service time had been. Help this manager make a control chart meeting her purpose

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