The following information regarding the ages of full-time and part-time students are given. Using the following data, develop an interval estimate for the difference between the mean ages of the two populations. Use a 5% level of significance. 
Definitions:
Catecholamines
Organic compounds that act as neurotransmitters or hormones, such as adrenaline and dopamine, involved in bodily responses to stress.
Nervous System
The network of nerve cells and fibers that transmits nerve impulses between parts of the body.
Axons
Long, slender projections of nerve cells (neurons) that transmit electrical impulses away from the neuron's cell body.
Cell Body
The part of a neuron that contains the nucleus and the metabolic center of the cell.
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