The U.S. Labor Department defines the civilian labor force as all those people who are either employed or actively seeking employment. Each month, the Labor Department reports the unemployment rate, which is the percentage of people actively seeking employment within the entire civilian labor force. To determine the unemployment rate, the Labor Department surveys 60,000 households. For the unemployment reports, describe each of the following. 

a. population 

b. sample 

c. raw data 

d. sample statistics 

e. population parameters.