Example - Brain Tumor Survival A study is conducted to compare the quality of the neurosurgical staff at each of three hospitals in the same city.

Example - Brain Tumor Survival A study is conducted to compare the quality of the neurosurgical staff at each of three hospitals in the same city. The researchers examine the records of patients who were operated on for brain tumors during the period between 1995 and 2000. For each patient they record the tumor grade and whether the patient was still alive one year after surgery. University Hospital County Hospital Private Hospital Which hospital has the best record?