Marketing 346 - Market Research » Spring 2023 » Chapter 12 Connect Quiz

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Question #1
Multicollinearity is a(n)
A.   statistical procedure that estimates regression equation coefficients that produce the lowest sum of squared differences between the actual and predicted values of a dependent variable.
B.   statistical technique that analyzes the linear relationship between a dependent variable and multiple independent variables by estimating coefficients for the equation for a straight line.
C.   estimated regression coefficient that has been recalculated to have a mean of zero and a standard deviation of 1.
D.   situation in which several independent variables are highly correlated with each other.
E.   statistic that compares the amount of variation in the dependent measure "explained" or associated with the independent variables to the "unexplained" or error variance.
Question #2
If a consistent and systematic relationship is not present between two variables, then
A.   there is no relationship.
B.   there is a weak association.
C.   an invisible relationship exists.
D.   there is a moderate relationship.
E.   a strong association is evident.
Question #3
________ is a statistical technique that uses information about the relationship between an independent or predictor variable and a dependent variable to make predictions.
A.   Bivariate regression analysis
B.   The non-parametric hypothesis coefficient
C.   Covariation
D.   Beta coefficient analysis
E.   Multiple regression analysis
Question #4
Which of the following is true of a beta coefficient?
A.   It is an F-ratio that has been recalculated to have a mean of 1 and a standard deviation of 0.
B.   It is an estimated correlation coefficient.
C.   A positive beta indicates that as the size of an independent variable decreases, the size of the dependent variable increases.
D.   It ranges from 1.00 to 3.00 and is a positive correlation coefficient.
E.   It shows the change in the dependent variable for each unit change in the independent variable.
Question #5
In calculating the Pearson correlation coefficient, we assume that
A.   the variables we want to analyze have a binomially distributed population.
B.   the relationship we are trying to measure is curvilinear.
C.   when the correlation coefficient is weak, there is a consistent, systematic relationship between the two variables of interest.
D.   the variables have been measured using interval- or ratio-scaled measures.
E.   when the correlation coefficient is strong and significant, the two variables of interest are associated in a curvilinear fashion.
Question #6
While studying the relationship between advertising and sales growth, a researcher determines that the relationship is sometimes weak and at other times moderate. This variation from one situation to another is the variation in the ________ of the relationship between advertising and sales growth.
A.   dispersion
B.   presence
C.   direction
D.   strength of association
E.   type
Question #7
To measure whether a relationship exists between two variables, we rely on the concept of statistical significance.
A.   FALSE
B.   TRUE
Question #8
Which of the following statements is true of correlation analysis?
A.   The null hypothesis for the Pearson correlation coefficient states that there is always a strong association between two variables.
B.   The Pearson correlation coefficient measures the degree of linear association between three variables.
C.   The larger the correlation coefficient, the weaker the association between two variables.
D.   The Pearson correlation coefficient measures the degree of linear association that ranges from 1.0 to 10.0.
E.   The null hypothesis for the Pearson correlation coefficient states that the correlation coefficient is zero.
Question #9
If a researcher is interested in measuring the effect of multiple independent variables on a dependent variable, he or she should use
A.   bivariate regression analysis.
B.   the Pearson correlation coefficient.
C.   multiple regression analysis.
D.   the Spearman correlation coefficient.
E.   simple regression.
Question #10
The coefficient of determination
A.   describes the variation in the dependent variable caused by the control variable.
B.   tells you the percentage of the total variation in the independent variable caused by the dependent variable.
C.   is a stronger measure than the Pearson correlation coefficient.
D.   ranges from .00 to 1.0.
E.   ranges from -1.0 to +1.0.

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