The owner of a retail store randomly selected the following weekly data on profits and advertising cost. 
a.Write down the appropriate linear relationship between advertising cost and profits. Which is the dependent variable? Which is the independent variable?
b.Calculate the least squares estimated regression line.
c.Predict the profits for a week when $200 is spent on advertising.
d.At 95% confidence, test to determine if the relationship between advertising costs and profits is statistically significant.
e.Calculate the coefficient of determination.
Definitions:
Personal Brand
The unique combination of skills, experiences, and personality that an individual presents to the world, especially in professional contexts.
Corporate Warrior
An employee who is highly dedicated and aggressively works towards achieving the company's goals.
Transformations
Comprehensive changes or conversions in form, nature, or appearance, especially significant in scope or scale.
Short-term Perspective
A focus on immediate or near-future outcomes and goals, often at the expense of long-term planning.
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