The Brock Juice Company has developed a regression model relating sales (Y in $10,000s) with four independent variables. The four independent variables are price per unit (X1, in dollars), competitor's price (X2, in dollars), advertising (X3, in $1,000s) and type of container used (X4) (1 = Cans and 0 = Bottles). Part of the regression results are shown below: 
a.Compute the coefficient of determination and fully interpret its meaning.
b.Is the regression model significant? Explain what your answer implies. Let = 0.05.
c.What has been the sample size for this analysis?
Definitions:
Job Simplification
The process of breaking down tasks into their simplest forms to increase efficiency and reduce complexity.
Employee Turnover
The rate at which employees leave a company and are replaced by new employees, which can indicate company health and employee satisfaction.
Compensation System
A structured plan designed by organizations to pay employees, which may include wages, salaries, bonuses, and benefits.
Telecommuting
A work arrangement in which employees do not commute to a central place of work, often working from home or a location close to home.
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