This is a quiz covering the assignment you completed 83014 and 84071.

Multiple choice questions
    1. The scatter chart below displays the residuals versus the dependent variable, x.Which of the following conclusions can be drawn based upon this scatter chart? (10pts).
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        a.     The residuals have a constant variance.
        b.     The model fails to capture the relationship between the variables accurately.
        c.     The model over predicts the value of the dependent variable for small values and large values of the independent variable.
        d.     The residuals are normally distributed.
        Answer    b,c
    2. The variance is based on the (5pts).
        a.     deviation about the median.
        b.     number of variables.
        c.     deviation about the mean.
        d.     correlation in the data.
        Answer    b,c
    3. _____________ refers to the scenario in which the relationship between the dependent variable and one independent variable is different at different values of a second independent variable. (10pts).
        a.     Interaction
        b.     Multicollinearity
        c.     Autocorrelation
        d.     Covariance
        Answer    a
    4. A time series plot of a period of time (in months) verses sales (in number of units) is shown below. Which of the...