The following is part of the results of a regression analysis involving sales (y in millions of dollars), advertising expenditures (x₁ in thousands of dollars), and number of salespeople (x₂) for a corporation: $\begin{array}{l}\text { ANOVA }\\\begin{array} { l l l l l } \text { Source } & d f & S S & M S & F \\\text { Regression } & 2 & 822.088 & \\\text { Error } & 7 & 736.012 &\end{array}\end{array}$
a.
At α = .05, test to determine if the model is significant. That is, determine if there exists a significant relationship between the independent variables and the dependent variable.
b.
Determine the multiple coefficient of determination.
c.
Determine the adjusted multiple coefficient of determination.
d.
What has been the sample size for this regression analysis?

Question

The following is part of the results of a regression analysis involving sales (y in millions of dollars), advertising expenditures (x₁ in thousands of dollars), and number of salespeople (x₂) for a corporation:

\begin{array}{l}\text { ANOVA }\\\begin{array} { l l l l l } \text { Source } & d f & S S & M S & F \\\text { Regression } & 2 & 822.088 & \\\text { Error } & 7 & 736.012 &\end{array}\end{array}

a.
At α = .05, test to determine if the model is significant. That is, determine if there exists a significant relationship between the independent variables and the dependent variable.
b.
Determine the multiple coefficient of determination.
c.
Determine the adjusted multiple coefficient of determination.
d.
What has been the sample size for this regression analysis?

Quizplus · Accepted Answer

The Answer of The following is part of the results of a regression analysis involving sales (y in millions of dollars), advertising expenditures (x₁ in thousands of dollars), and number of salespeople (x₂) for a corporation: $$\begin{array}{l} \text { ANOVA }\ \begin{array} { l l l l l } \text { Source } & d f & S S & M S & F \ \text { Regression } & 2 & 822.088 & \ \text { Error } & 7 & 736.012 & \end{array} \end{array}$$ a. At α = .05, test to determine if the model is significant. That is, determine if there exists a significant relationship between the independent variables and the dependent variable. b. Determine the multiple coefficient of determination. c. Determine the adjusted multiple coefficient of determination. d. What has been the sample size for this regression analysis?

The Following Is Part of the Results of a Regression