Exhibit 16-7.It is believed that the sales volume of one liter Pepsi bottles depends on the price of the bottle and the price of one liter bottle of Coca Cola.The following data has been collected for a certain sales region. 
Using Excel's regression,the linear model PepsiSales = β0 + β1PepsiPrice + β2ColaPrice + ε and the log-log model ln(PepsiSales)= β0 + β1ln(PepsiPrice)+ β2ln(ColaPrice)+ ε have been estimated as follows: 
(Use Excel. )Refer to Exhibit 16.7.Which of the two models provides a better fit?
Definitions:
Demand for Artichokes
The desire or need expressed by consumers to purchase and consume artichokes, influenced by factors such as price, income, and taste preferences.
Inelastic Demand
A situation where the demand for a good or service does not significantly change in response to price changes.
Total Expenditures
The overall amount spent on goods and services.
Utility Function
A mathematical representation of how individual preferences are aggregated to represent satisfaction or utility from consuming goods and services.
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