A study by a bank compared the average savings of customers who were depositors for three years or less, with those who had been depositors for more than three years. The results of a sample are: 
What is the computed test statistic? ______________
Definitions:
Neal E. Miller
An American experimental psychologist known for his work on motivational and learning theories, particularly in the context of behavioral psychology.
Multiple Approach-Avoidance Conflict
A psychological conflict that occurs when a person is faced with a choice that has both attractive and unattractive aspects.
Interpersonal Conflict
A situation where two or more individuals who have differing opinions, goals, or needs struggle to find a common ground, leading to friction or strife.
Approach-Approach Conflict
A psychological conflict scenario arising when an individual must choose between two desirable outcomes.
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