Two coffee-vending machines are studied to determine whether they distribute the same amounts.Samples are taken and the number of ounces is recorded for each machine. 
What is the test statistic T?
Definitions:
Cyberbullying
The use of digital technologies, such as social media, emails, and websites, to harass, threaten, embarrass, or target another person.
Perpetrator
A person who carries out a harmful, illegal, or immoral act.
Anonymous
Describes a person, action, or situation where the identity is unknown or not disclosed, offering privacy or secrecy.
Hostile Expectation Bias
The tendency to assume that people will react to potential conflicts with aggression.
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