The equal-variances test statistic of 
is Student t-distributed with n1 + n2 - 2 degrees of freedom provided that the two populations are ____________________.
Definitions:
Government Regulations
Laws and rules established by authorities to control or govern conduct within certain domains.
Humane Care
Providing care that is compassionate and respects the dignity of individuals, animals, or the environment, often emphasizing kindness and empathy.
Manipulate People
The act of influencing or controlling others in a skillful or sometimes unethical manner, often without their awareness or consent.
Mental Processes
Cognitive activities and functions of the mind, including perception, thinking, memory, and judgment.
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