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Estimating the regression equation. 

You have been provided with the following regression output. The dependent variable is unit sales of a product, and the independent variable is the dollar value of newspaper advertising for that product. The unit of analysis is weeks; that is, each of the observations in the underlying sample data represents a separate week of sales and newspaper advertising.
Regression Analysis: Sales versus Newspaper

The regression equation is
Sales = 6514 + 0.0386 Newspaper
















 S = 5630.70   R-Sq = 24.3%   R-Sq(adj) = 23.8%

Analysis of Variance 


      D F


        M S                        









Residual Error












1. How much of the variability has been describeed?

2. Is there a relationship between sales and newspaper advertising? Maintain your answer?

3. What does the constant coefficient 6514 mean?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921051

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