Question: The following data represent the time, in minutes, that a patient has to wait during 12 visits to a doctor's office before being seen by

The following data represent the time, in minutes, that a patient has to wait during 12 visits to a doctor's office before being seen by the doctor. Use the sign test at the 0.05 level of significance to test the doctor's claim that the median waiting time for her patients is not more than 20 minutes before being admitted to the examinationroom.

17 15 32 28 20 20 26 25 25 35 12 2 24 3.

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