Samples from two independent, normally-distributed populations produced the following results. 
Calculate the test statistic for the difference between population means, 
.
Definitions:
Breast Enlargement
A surgical procedure to increase the size and/or alter the shape of a woman's breasts for cosmetic or medical reasons.
Pubic Hair
Body hair that grows in the genital region following puberty; a secondary sexual characteristic signaling sexual maturity.
High-Tech Teaching
Modern educational practices that incorporate advanced technology and digital tools to enhance learning.
Orderly Atmosphere
An environment characterized by cleanliness, organization, and a systematic approach to tasks and responsibilities.
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