Wawa Corporation operates 570 convenient food stores in Delaware, Maryland, New Jersey, Pennsylvania, and Virginia.

Suppose the company’s managers have a goal that customer satisfaction is to average at least 8.0 on a scale of 1–10. A random sample of 60 stores was selected, and the average customer satisfaction level for these stores was 7.75. Assume the historical standard deviation of satisfaction scores is 0.9. Is the goal set by the managers being achieved?

AppendixLO1