A social worker is interested in the link between how difficult and demanding a rehabilitation program is for hip replacements, and how satisfied the patient is when the program is completed. Using the following cross-tab based on a sample of sixty-four patients, compute a gamma coefficient to determine the association between how difficult a program is 

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Satisfaction upon Completion Very Satisfied Satisfied Dissatisfied Difficulty of Rehab Program Hard Medium Easy 11 7 14 4 7 6 10 3 2