A regression analysis between sales (in $1000) and advertising (in $) yielded the least squares line 
= 80 000 + 5x. This implies that an:
Definitions:
Local Ecosystems
The community of living organisms, including plants, animals, and microorganisms, in conjunction with the nonliving components of their environment, interacting as a system within a specific local area.
Human Needs
Fundamental requirements necessary for individuals to function and thrive, including basic physical needs, safety, belonging, esteem, and self-actualization.
Free-Market School
An economic theory advocating minimal governmental involvement in the economy, emphasizing the role of supply and demand in regulating prices and resources.
Government Interference
Refers to the involvement or actions by a government in market operations or the personal affairs of its citizens, often to correct market failures or protect public interests.
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