Sales and Experience
The general manager of a chain of department stores believes that experience is the most important factor in determining the level of success of a salesperson.To examine this belief she records last month's sales (in $1,000s)and the years of experience of 10 randomly selected salespeople.These data are listed below. 
-{Sales and Experience Narrative} Determine the least squares regression line.
Definitions:
Pure Competition
A market structure characterized by a large number of small firms selling identical products, with no single seller having a significant influence on market price.
Oligopoly
A market structure characterized by a small number of large firms dominating the market, leading to limited competition.
Mutually Cancelling Advertising
Mutually cancelling advertising refers to a situation where the competitive advertising efforts of firms negate each other's impact, leading to no significant change in market share.
Economic Efficiency
A state in which resources are allocated in the most beneficial way, maximizing output while minimizing waste and inefficiency.
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