A credit company has gathered information regarding the average amount (in $) owed by people under 30 years of age and by people over 30 years by taking independent random samples from both age groups.You are given the following information. 
Construct a 95% confidence interval for the difference between the population average amounts owed by the two age groups.
Definitions:
Paralanguage
Voice effects that accompany language and convey meaning. These include vocalizations such as giggling, groaning, or sighing, as well as voice qualities such as pitch and tempo.
Gesture-Call System
A communication method involving a combination of gestures and vocalizations used by primates, including humans, to convey messages or express needs.
Linguistic Relativity
The idea that language to some extent shapes the way in which people perceive and think about the world.
Aymara Language
A Native South American language spoken by the Aymara people in Bolivia, Peru, and Chile.
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