Question: Exercise 4. Patients underwent knee replacement surgeries for one or both knees. The data record patient id, the replaced knee number (1 or 2), and

Exercise 4. Patients underwent knee replacement surgeries for one or both knees. The data record patient id, the replaced knee number (1 or 2), and satisfaction scores pre-operatively, one day, one week, and one month after the surgery. The data are (a) Use the ARRAY statement to create a data set containing satisfaction scores for knee 1

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