The Brock Juice Company Has Developed a Regression Model Relating $\alpha$

Essay

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 $\alpha$ = 0.05.
c.What has been the sample size for this analysis?