A corporation owns several companies. The strategic planner for the corporation believes money spent on advertising can to some extent be a predictor of total sales. As an aid in long- term planning, she gathers the following sales and advertising information from several of the companies for 2009 ($ millions). Advertising Sales 12.5 148 3.7 55 21.6 338 60.0 994 37.6 541 6.1 89 16.8 126 41.2 379. Develop the equation of the simple regression line to predict sales from advertising expenditures using these data.
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Answer:
The four spheres of Earth are closely connected to each other. Birds(biosphere) fly through the air (atmosphere), water (hydrosphere) flows through the soil (lithosphere). The spheres of earth are closely connected to each other. A change in one sphere results in change in two or more spheres.
Answer:
Variables Entered/Removed Variables Variables Model Entered Removed Method ADVERTISING Enter
a. Dependent Variable: SALES
b. All requested variables entered. Model Summary Adjusted R Std.
Error of the Model R Square Square R Estimate 948 .898 881 108.75753 a. Predictors: (Constant), ADVERTISING ANOVA' Model Sum of Squares Mean Square Sig df F 1 Regression 625246.302 625246.302 52.861 .00 Residual 70969.198 6 11828.200 Total 696215.500 7
a. Dependent Variable: SALES
b. Predictors: (Constant), ADVERTISING Coefficients Standardized Unstandardized Coefficients Coefficients Std. Error Model Beta Sig 1 (Constant) -46.292 64.891 -.713 502 ADVERTISING 15.240 2.096 948 7.271 000 a. Dependent Variable: SALES