Costco sells paperback books in their retail stores and wants to examine the relationship between the prices and sales. The price of a particular novel was adjusted each week and the weekly sales are in the following table. Management would like to use a simple linear regression model that uses prices to predict sales. 
The total sum of squares for this sample is equal to ________.
Definitions:
Long-Run Aggregate Supply Curve
A vertical line representing the real output of goods and services that an economy can produce when it is fully employed, regardless of the level of demand.
Minimum Wage
The lowest legal remuneration that employers are allowed to pay their workers, aimed at protecting workers from unduly low pay.
Open a Business
The process of establishing a new commercial enterprise or venture to sell goods or services.
Sticky-Wage Theory
An economic theory that proposes wages tend to adjust more slowly to changes in the economy, affecting employment and labor market dynamics.
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