The multiple regression model is given as follows: Y = a + B,X, + B,X,+ D, Sales revenues per year in millions of dollars = Marketing expenditure in millions of dollars = Quality control spending in millions of dollars Y X, X, = disturbance term Regression equation: Y = 15.7 + 1.885X, + 1.925X,+ D, while p-value for X, = 0.0003 and p-value for X, = 0.1047 a. Interpret the meaning of coefficients and p-values for each independent variables from the above equation b. Estimate the sales revenues when the marketing expenditure is $15 million and quality control spending is $4.5 million c. If the R-square value = 0.6454. Interpret the meaning of this R-square!
The multiple regression model is given as follows: Y = a + B,X, + B,X,+ D, Sales revenues per year in millions of dollars = Marketing expenditure in millions of dollars = Quality control spending in millions of dollars Y X, X, = disturbance term Regression equation: Y = 15.7 + 1.885X, + 1.925X,+ D, while p-value for X, = 0.0003 and p-value for X, = 0.1047 a. Interpret the meaning of coefficients and p-values for each independent variables from the above equation b. Estimate the sales revenues when the marketing expenditure is $15 million and quality control spending is $4.5 million c. If the R-square value = 0.6454. Interpret the meaning of this R-square!
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section: Chapter Questions
Problem 10T: Olympic Pole Vault The graph in Figure 7 indicates that in recent years the winning Olympic men’s...
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