Question: A Study by health economists at a southern university indicated that Parkinson’s disease cost the nation $85 billion a year in medical expenses and lost productivity. Patients earning loss was $25 billion, the value of time of unpaid caregivers was $35 Billion, the value of time of unpaid caregivers was $35 billion, and the cost of paid care was $22 billion.

? What is the population?

? What is the response variable?

? What is the parameter?

? What is the statistics