The National Health Interview Survey is conducted annually by the Centers for Disease Control and Prevention.By examining information gathered from a national sample of 600 respondents throughout the United States,it was able to announce that 11.3 percent of all Americans adults under age 65 lacked health insurance.To make this statement,the Centers for Disease Control and Prevention used
A)focus groups.
B)no constraints.
C)internal secondary data.
D)statistical inference.
E)interpolation.

Question

Quizplus · Accepted Answer

Statistical inference is used to draw conclusions about a population (the universe of all people about which one wishes to generalize-Americans)from a sample (some elements of the universe-a smaller set of Americans or sample of 600 people)taken from that population.

The National Health Interview Survey Is Conducted Annually by the Centers