It is believed that the sales volume of one-liter Pepsi bottles depends on the price of the bottle and the price of a one-liter bottle of Coca-Cola.The following data have been collected for a certain sales region. 
Using Excel's regression,the linear model Pepsi Sales = β0 + β1Pepsi Price + β2Cola Price + ε and the log-log model ln(Pepsi Sales)= β0 + β1ln(Pepsi Price)+ β2ln(Cola Price)+ ε have been estimated as follows: 
For the estimated log-log model,interpret the estimated slope coefficient of ln(Cola Price).
Definitions:
Celebrity Marriages
Marriages between individuals who are highly recognized or famous, often attracting public fascination and media attention.
Representativeness Heuristic
A mental shortcut used to judge the probability of an event by how much it resembles a typical case.
Simulation Heuristic
The simulation heuristic is a psychological theory that explains how people determine the likelihood of an event based on how easy it is to visualize the event happening.
Exam Question
A query or problem posed during an examination to evaluate a student's knowledge or skills.
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