The Patients file contains information for a random sample of geriatric patients. During a meeting, one hospital administrator indicated that 70% of the geriatric patients are males.

a. Based on the data contained in the Patients file, would you conclude the administrator’s assertion concerning the proportion of male geriatric patients is correct? Justify your answer.

b. The administrator also believes 80% of all geriatric patients are covered by Medicare (Code  CARE).

Again, based on the data contained in the file, what conclusion should the hospital administrator reach concerning the proportion of geriatric patients covered by Medicare? Discuss.