Ch.13 Quiz

Instructions
Please read the questions carefully.

This assessment is worth 100 points.

  1. What is the measurement of explained variation?   (10 points)

    a.  
    b.  
    c.  
    d.  
    e.  

  2. When does multicollinearity occur in a multiple regression analysis?   (10 points)

    a.  
    b.  
    c.  
    d.  
    e.  

  3. How is the Y intercept in the multiple regression equation represented?   (10 points)

    a.  
    b.  
    c.  
    d.  
    e.  

  4. What happens as the scatter of data values about the regression plane increases?   (10 points)

    a.  
    b.  
    c.  
    d.  
    e.  

  5. For a unit change in the first independent variable with other things being held constant, what change can be expected in the dependent variable in the multiple regression equation Y' = 5.2 + 6.3X1 – 7.1X2?   (10 points)

    a.  
    b.  
    c.  
    d.  
    e.  

  6. The best example of an alternate hypothesis for a global test of a multiple regression model is:   (10 points)

    a.  
    b.  
    c.  
    d.  

  7. In multiple regression analysis, residuals ( Y – Y' ) are used to:   (10 points)

    a.  
    b.  
    c.  
    d.  

  8. Multiple regression analysis is applied when analyzing the relationship between   (10 points)

    a.  
    b.  
    c.  
    d.  
    e.  

  9. A manager at a local bank analyzed the relationship between monthly salary and three independent variables: length of service (measured in months), gender ( 0 = female, 1 = male) and job type (0 = clerical, 1 = technical). The following ANOVA summarizes the regression results:




    Based on the ANOVA, the multiple coefficient of determination is   (10 points)

    a.  
    b.  
    c.  
    d.  

  10. A manager at a local bank analyzed the relationship between monthly salary and three independent variables: length of service (measured in months), gender ( 0 = female, 1 = male) and job type (0 = clerical, 1 = technical). The following ANOVA summarizes the regression results:




    Based on the hypothesis tests for the individual regression coefficients,   (10 points)

    a.  
    b.  
    c.  
    d.  



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