Question: Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well as on
Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well as on the accuracy and completeness of your results and explanations.
A bank categorizes its customers into one of three groups based on their banking habits. A random sample of30
customers from each group was selected, and the number of times each customer visited the bank during the past year was recorded. The following table shows the summary statistics.


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